21258874

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6871}}^1$

素因数の和:6910

約数の個数: 32

約数和(自身を含む): 41561856

約数和(自身を除く): 20302982

約数列:

[1, 2, 7, 13, 14, 17, 26, 34, 91, 119, 182, 221, 238, 442, 1547, 3094, 6871, 13742, 48097, 89323, 96194, 116807, 178646, 233614, 625261, 817649, 1250522, 1518491, 1635298, 3036982, 10629437, 21258874]

約数ペア:

[(1, 21258874), (2, 10629437), (7, 3036982), (13, 1635298), (14, 1518491), (17, 1250522), (26, 817649), (34, 625261), (91, 233614), (119, 178646), (182, 116807), (221, 96194), (238, 89323), (442, 48097), (1547, 13742), (3094, 6871)]