21190444

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{401}}^1\times {\mathrm{1201}}^1$

素因数の和:1617

約数の個数: 24

約数和(自身を含む): 40589136

約数和(自身を除く): 19398692

約数列:

[1, 2, 4, 11, 22, 44, 401, 802, 1201, 1604, 2402, 4411, 4804, 8822, 13211, 17644, 26422, 52844, 481601, 963202, 1926404, 5297611, 10595222, 21190444]

約数ペア:

[(1, 21190444), (2, 10595222), (4, 5297611), (11, 1926404), (22, 963202), (44, 481601), (401, 52844), (802, 26422), (1201, 17644), (1604, 13211), (2402, 8822), (4411, 4804)]