21411940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97327}}^1$

素因数の和:97347

約数の個数: 24

約数和(自身を含む): 49053312

約数和(自身を除く): 27641372

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 97327, 194654, 389308, 486635, 973270, 1070597, 1946540, 2141194, 4282388, 5352985, 10705970, 21411940]

約数ペア:

[(1, 21411940), (2, 10705970), (4, 5352985), (5, 4282388), (10, 2141194), (11, 1946540), (20, 1070597), (22, 973270), (44, 486635), (55, 389308), (110, 194654), (220, 97327)]