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A008333
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Sum of divisors of p+1, p prime.
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14
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4, 7, 12, 15, 28, 24, 39, 42, 60, 72, 63, 60, 96, 84, 124, 120, 168, 96, 126, 195, 114, 186, 224, 234, 171, 216, 210, 280, 216, 240, 255, 336, 288, 336, 372, 300, 240, 294, 480, 360, 546, 336, 508, 294, 468, 465, 378, 504, 560, 432, 546, 744, 399, 728, 528, 720, 720, 558
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OFFSET
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1,1
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LINKS
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FORMULA
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MAPLE
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for i from 1 to 500 do if isprime(i) then print(sigma(i+1)); fi; od;
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MATHEMATICA
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PROG
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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