12728259

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1$

素因数の和:217

約数の個数: 40

約数和(自身を含む): 20304768

約数和(自身を除く): 7576509

約数列:

[1, 3, 9, 27, 31, 37, 81, 93, 111, 137, 279, 333, 411, 837, 999, 1147, 1233, 2511, 2997, 3441, 3699, 4247, 5069, 10323, 11097, 12741, 15207, 30969, 38223, 45621, 92907, 114669, 136863, 157139, 344007, 410589, 471417, 1414251, 4242753, 12728259]

約数ペア:

[(1, 12728259), (3, 4242753), (9, 1414251), (27, 471417), (31, 410589), (37, 344007), (81, 157139), (93, 136863), (111, 114669), (137, 92907), (279, 45621), (333, 38223), (411, 30969), (837, 15207), (999, 12741), (1147, 11097), (1233, 10323), (2511, 5069), (2997, 4247), (3441, 3699)]