81398156

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{47657}}^1$

素因数の和:47729

約数の個数: 24

約数和(自身を含む): 165468576

約数和(自身を除く): 84070420

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 854, 1708, 47657, 95314, 190628, 333599, 667198, 1334396, 2907077, 5814154, 11628308, 20349539, 40699078, 81398156]

約数ペア:

[(1, 81398156), (2, 40699078), (4, 20349539), (7, 11628308), (14, 5814154), (28, 2907077), (61, 1334396), (122, 667198), (244, 333599), (427, 190628), (854, 95314), (1708, 47657)]