21072666

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{81677}}^1$

素因数の和:81725

約数の個数: 16

約数和(自身を含む): 43125984

約数和(自身を除く): 22053318

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 81677, 163354, 245031, 490062, 3512111, 7024222, 10536333, 21072666]

約数ペア:

[(1, 21072666), (2, 10536333), (3, 7024222), (6, 3512111), (43, 490062), (86, 245031), (129, 163354), (258, 81677)]