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A268036
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Cubes of the prime factors (with multiplicity) of n add up to n.
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2
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OFFSET
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1,1
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COMMENTS
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13579716377989 and 119429556097859 are also terms, but it is not known if they are the next ones. - Jud McCranie, Feb 09 2016
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LINKS
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EXAMPLE
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1096744 = 2^3 * 11^3 * 103 = 2^3+2^3+2^3+11^3+11^3+11^3+103^3.
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PROG
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(PARI) isok(n) = {my(f = factor(n)); sum(k=1, #f~, f[k, 1]^3*f[k, 2]) == n; } \\ Michel Marcus, Feb 09 2016
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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