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A069192
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Sum of the reversals of the divisors of n.
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1
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1, 3, 4, 7, 6, 12, 8, 15, 13, 9, 12, 37, 32, 51, 60, 76, 72, 102, 92, 15, 23, 36, 33, 87, 58, 96, 85, 137, 93, 72, 14, 99, 48, 117, 66, 190, 74, 177, 128, 27
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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LINKS
| Pe, J. The Picture-Perfect Numbers
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EXAMPLE
| The divisors of 10 are 1,2,5,10, which reversed are 1,2,5,1, summing to 9. Therefore a(10) = 9.
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MATHEMATICA
| f[n_] := FromDigits[Reverse[IntegerDigits[n]]]; g[n_] := Apply[Plus, Map[f, Divisors[n]]]; Table[g[i], {i, 1, 40}]
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CROSSREFS
| Cf. A069250.
Sequence in context: A088000 A168338 A034690 * A076887 A140782 A097011
Adjacent sequences: A069189 A069190 A069191 * A069193 A069194 A069195
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KEYWORD
| base,nonn
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AUTHOR
| Joseph L. Pe (joseph_l_pe(AT)hotmail.com), Apr 19 2002
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