18961528

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{139423}}^1$

素因数の和:139446

約数の個数: 16

約数和(自身を含む): 37644480

約数和(自身を除く): 18682952

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 139423, 278846, 557692, 1115384, 2370191, 4740382, 9480764, 18961528]

約数ペア:

[(1, 18961528), (2, 9480764), (4, 4740382), (8, 2370191), (17, 1115384), (34, 557692), (68, 278846), (136, 139423)]