19289644

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{438401}}^1$

素因数の和:438416

約数の個数: 12

約数和(自身を含む): 36825768

約数和(自身を除く): 17536124

約数列:

[1, 2, 4, 11, 22, 44, 438401, 876802, 1753604, 4822411, 9644822, 19289644]

約数ペア:

[(1, 19289644), (2, 9644822), (4, 4822411), (11, 1753604), (22, 876802), (44, 438401)]