18243620

素因数分解:

$2^2\times 5^1\times {\mathrm{827}}^1\times {\mathrm{1103}}^1$

素因数の和:1939

約数の個数: 24

約数和(自身を含む): 38392704

約数和(自身を除く): 20149084

約数列:

[1, 2, 4, 5, 10, 20, 827, 1103, 1654, 2206, 3308, 4135, 4412, 5515, 8270, 11030, 16540, 22060, 912181, 1824362, 3648724, 4560905, 9121810, 18243620]

約数ペア:

[(1, 18243620), (2, 9121810), (4, 4560905), (5, 3648724), (10, 1824362), (20, 912181), (827, 22060), (1103, 16540), (1654, 11030), (2206, 8270), (3308, 5515), (4135, 4412)]