21925310

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199321}}^1$

素因数の和:199339

約数の個数: 16

約数和(自身を含む): 43053552

約数和(自身を除く): 21128242

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 199321, 398642, 996605, 1993210, 2192531, 4385062, 10962655, 21925310]

約数ペア:

[(1, 21925310), (2, 10962655), (5, 4385062), (10, 2192531), (11, 1993210), (22, 996605), (55, 398642), (110, 199321)]