19662788

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{677}}^1$

素因数の和:871

約数の個数: 24

約数和(自身を含む): 35367192

約数和(自身を除く): 15704404

約数列:

[1, 2, 4, 53, 106, 137, 212, 274, 548, 677, 1354, 2708, 7261, 14522, 29044, 35881, 71762, 92749, 143524, 185498, 370996, 4915697, 9831394, 19662788]

約数ペア:

[(1, 19662788), (2, 9831394), (4, 4915697), (53, 370996), (106, 185498), (137, 143524), (212, 92749), (274, 71762), (548, 35881), (677, 29044), (1354, 14522), (2708, 7261)]