20865604

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{881}}^1$

素因数の和:1107

約数の個数: 24

約数和(自身を含む): 37933056

約数和(自身を除く): 17067452

約数列:

[1, 2, 4, 31, 62, 124, 191, 382, 764, 881, 1762, 3524, 5921, 11842, 23684, 27311, 54622, 109244, 168271, 336542, 673084, 5216401, 10432802, 20865604]

約数ペア:

[(1, 20865604), (2, 10432802), (4, 5216401), (31, 673084), (62, 336542), (124, 168271), (191, 109244), (382, 54622), (764, 27311), (881, 23684), (1762, 11842), (3524, 5921)]