20525713

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{307}}^1$

素因数の和:496

約数の個数: 16

約数和(自身を含む): 22939840

約数和(自身を除く): 2414127

約数列:

[1, 13, 37, 139, 307, 481, 1807, 3991, 5143, 11359, 42673, 66859, 147667, 554749, 1578901, 20525713]

約数ペア:

[(1, 20525713), (13, 1578901), (37, 554749), (139, 147667), (307, 66859), (481, 42673), (1807, 11359), (3991, 5143)]