121490257

素因数分解:

$7^3\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1$

素因数の和:278

約数の個数: 32

約数和(自身を含む): 148780800

約数和(自身を除く): 27290543

約数列:

[1, 7, 41, 49, 53, 163, 287, 343, 371, 1141, 2009, 2173, 2597, 6683, 7987, 8639, 14063, 15211, 18179, 46781, 55909, 60473, 106477, 327467, 354199, 423311, 745339, 2292269, 2479393, 2963177, 17355751, 121490257]

約数ペア:

[(1, 121490257), (7, 17355751), (41, 2963177), (49, 2479393), (53, 2292269), (163, 745339), (287, 423311), (343, 354199), (371, 327467), (1141, 106477), (2009, 60473), (2173, 55909), (2597, 46781), (6683, 18179), (7987, 15211), (8639, 14063)]