20891886

素因数分解:

$2^1\times 3^1\times {\mathrm{149}}^1\times {\mathrm{23369}}^1$

素因数の和:23523

約数の個数: 16

約数和(自身を含む): 42066000

約数和(自身を除く): 21174114

約数列:

[1, 2, 3, 6, 149, 298, 447, 894, 23369, 46738, 70107, 140214, 3481981, 6963962, 10445943, 20891886]

約数ペア:

[(1, 20891886), (2, 10445943), (3, 6963962), (6, 3481981), (149, 140214), (298, 70107), (447, 46738), (894, 23369)]