81371906

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{1699}}^1$

素因数の和:2030

約数の個数: 32

約数和(自身を含む): 152755200

約数和(自身を除く): 71383294

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 311, 622, 1699, 2177, 3398, 3421, 4354, 6842, 11893, 18689, 23786, 23947, 37378, 47894, 130823, 261646, 528389, 1056778, 3698723, 5812279, 7397446, 11624558, 40685953, 81371906]

約数ペア:

[(1, 81371906), (2, 40685953), (7, 11624558), (11, 7397446), (14, 5812279), (22, 3698723), (77, 1056778), (154, 528389), (311, 261646), (622, 130823), (1699, 47894), (2177, 37378), (3398, 23947), (3421, 23786), (4354, 18689), (6842, 11893)]