81286359

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{7487}}^1$

素因数の和:7555

約数の個数: 32

約数和(自身を含む): 138018816

約数和(自身を除く): 56732457

約数列:

[1, 3, 7, 11, 21, 33, 47, 77, 141, 231, 329, 517, 987, 1551, 3619, 7487, 10857, 22461, 52409, 82357, 157227, 247071, 351889, 576499, 1055667, 1729497, 2463223, 3870779, 7389669, 11612337, 27095453, 81286359]

約数ペア:

[(1, 81286359), (3, 27095453), (7, 11612337), (11, 7389669), (21, 3870779), (33, 2463223), (47, 1729497), (77, 1055667), (141, 576499), (231, 351889), (329, 247071), (517, 157227), (987, 82357), (1551, 52409), (3619, 22461), (7487, 10857)]