21142628

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23917}}^1$

素因数の和:23951

約数の個数: 24

約数和(自身を含む): 42191352

約数和(自身を除く): 21048724

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 221, 442, 884, 23917, 47834, 95668, 310921, 406589, 621842, 813178, 1243684, 1626356, 5285657, 10571314, 21142628]

約数ペア:

[(1, 21142628), (2, 10571314), (4, 5285657), (13, 1626356), (17, 1243684), (26, 813178), (34, 621842), (52, 406589), (68, 310921), (221, 95668), (442, 47834), (884, 23917)]