2021031940

素因数分解:

$2^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{193957}}^1$

素因数の和:194487

約数の個数: 24

約数和(自身を含む): 4252335192

約数和(自身を除く): 2231303252

約数列:

[1, 2, 4, 5, 10, 20, 521, 1042, 2084, 2605, 5210, 10420, 193957, 387914, 775828, 969785, 1939570, 3879140, 101051597, 202103194, 404206388, 505257985, 1010515970, 2021031940]

約数ペア:

[(1, 2021031940), (2, 1010515970), (4, 505257985), (5, 404206388), (10, 202103194), (20, 101051597), (521, 3879140), (1042, 1939570), (2084, 969785), (2605, 775828), (5210, 387914), (10420, 193957)]