21850510

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{198641}}^1$

素因数の和:198659

約数の個数: 16

約数和(自身を含む): 42906672

約数和(自身を除く): 21056162

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 198641, 397282, 993205, 1986410, 2185051, 4370102, 10925255, 21850510]

約数ペア:

[(1, 21850510), (2, 10925255), (5, 4370102), (10, 2185051), (11, 1986410), (22, 993205), (55, 397282), (110, 198641)]