21198772

素因数分解:

$2^2\times 7^3\times {\mathrm{15451}}^1$

素因数の和:15476

約数の個数: 24

約数和(自身を含む): 43265600

約数和(自身を除く): 22066828

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 15451, 30902, 61804, 108157, 216314, 432628, 757099, 1514198, 3028396, 5299693, 10599386, 21198772]

約数ペア:

[(1, 21198772), (2, 10599386), (4, 5299693), (7, 3028396), (14, 1514198), (28, 757099), (49, 432628), (98, 216314), (196, 108157), (343, 61804), (686, 30902), (1372, 15451)]