21690174

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{328639}}^1$

素因数の和:328655

約数の個数: 16

約数和(自身を含む): 47324160

約数和(自身を除く): 25633986

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 328639, 657278, 985917, 1971834, 3615029, 7230058, 10845087, 21690174]

約数ペア:

[(1, 21690174), (2, 10845087), (3, 7230058), (6, 3615029), (11, 1971834), (22, 985917), (33, 657278), (66, 328639)]