20778693

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{3833}}^1$

素因数の和:3988

約数の個数: 16

約数和(自身を含む): 30058560

約数和(自身を除く): 9279867

約数列:

[1, 3, 13, 39, 139, 417, 1807, 3833, 5421, 11499, 49829, 149487, 532787, 1598361, 6926231, 20778693]

約数ペア:

[(1, 20778693), (3, 6926231), (13, 1598361), (39, 532787), (139, 149487), (417, 49829), (1807, 11499), (3833, 5421)]