21177340

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{34157}}^1$

素因数の和:34197

約数の個数: 24

約数和(自身を含む): 45908352

約数和(自身を除く): 24731012

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 34157, 68314, 136628, 170785, 341570, 683140, 1058867, 2117734, 4235468, 5294335, 10588670, 21177340]

約数ペア:

[(1, 21177340), (2, 10588670), (4, 5294335), (5, 4235468), (10, 2117734), (20, 1058867), (31, 683140), (62, 341570), (124, 170785), (155, 136628), (310, 68314), (620, 34157)]