A055716 Numbers n such that n | sigma_12(n).

1, 34, 228, 444, 482, 492, 876, 1292, 1308, 2482, 2812, 3876, 5548, 5617, 8194, 8284, 8436, 9348, 10804, 10982, 11234, 13172, 16132, 16644, 17876, 18204, 22468, 24852, 28324, 31828, 32412, 32946, 35186, 35916, 39516, 44914, 46754, 47804, 48396

Offset

1,2

Comments

sigma_12(n) is the sum of the 12th powers of the divisors of n (A013960).

Links

Amiram Eldar, Table of n, a(n) for n = 1..4000

Mathematica

Do[If[Mod[DivisorSigma[12, n], n]==0, Print[n]], {n, 1, 10^5}]

Prog

(Magma) [k:k in [1..50000]| IsIntegral(DivisorSigma(12, k)/ k)]; // Marius A. Burtea, Nov 06 2019

Crossrefs

Cf. A013960.

Sequence in context: A050263 A020869 A355884 * A233300 A281052 A020872

Adjacent sequences: A055713 A055714 A055715 * A055717 A055718 A055719

Keyword

nonn

Author

Robert G. Wilson v, Jun 09 2000

Status

approved