21437570

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{2531}}^1$

素因数の和:2567

約数の個数: 48

約数和(自身を含む): 48492864

約数和(自身を除く): 27055294

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 121, 154, 242, 385, 605, 770, 847, 1210, 1694, 2531, 4235, 5062, 8470, 12655, 17717, 25310, 27841, 35434, 55682, 88585, 139205, 177170, 194887, 278410, 306251, 389774, 612502, 974435, 1531255, 1948870, 2143757, 3062510, 4287514, 10718785, 21437570]

約数ペア:

[(1, 21437570), (2, 10718785), (5, 4287514), (7, 3062510), (10, 2143757), (11, 1948870), (14, 1531255), (22, 974435), (35, 612502), (55, 389774), (70, 306251), (77, 278410), (110, 194887), (121, 177170), (154, 139205), (242, 88585), (385, 55682), (605, 35434), (770, 27841), (847, 25310), (1210, 17717), (1694, 12655), (2531, 8470), (4235, 5062)]