21684410

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17921}}^1$

素因数の和:17950

約数の個数: 24

約数和(自身を含む): 42905268

約数和(自身を除く): 21220858

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 17921, 35842, 89605, 179210, 197131, 394262, 985655, 1971310, 2168441, 4336882, 10842205, 21684410]

約数ペア:

[(1, 21684410), (2, 10842205), (5, 4336882), (10, 2168441), (11, 1971310), (22, 985655), (55, 394262), (110, 197131), (121, 179210), (242, 89605), (605, 35842), (1210, 17921)]