20808986

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{55639}}^1$

素因数の和:55669

約数の個数: 16

約数和(自身を含む): 36054720

約数和(自身を除く): 15245734

約数列:

[1, 2, 11, 17, 22, 34, 187, 374, 55639, 111278, 612029, 945863, 1224058, 1891726, 10404493, 20808986]

約数ペア:

[(1, 20808986), (2, 10404493), (11, 1891726), (17, 1224058), (22, 945863), (34, 612029), (187, 111278), (374, 55639)]