21209654404

素因数分解:

$2^2\times {\mathrm{41}}^2\times {\mathrm{3154321}}^1$

素因数の和:3154407

約数の個数: 18

約数和(自身を含む): 38044277642

約数和(自身を除く): 16834623238

約数列:

[1, 2, 4, 41, 82, 164, 1681, 3362, 6724, 3154321, 6308642, 12617284, 129327161, 258654322, 517308644, 5302413601, 10604827202, 21209654404]

約数ペア:

[(1, 21209654404), (2, 10604827202), (4, 5302413601), (41, 517308644), (82, 258654322), (164, 129327161), (1681, 12617284), (3362, 6308642), (6724, 3154321)]