20876271

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{3851}}^1$

素因数の和:4006

約数の個数: 16

約数和(自身を含む): 30199680

約数和(自身を除く): 9323409

約数列:

[1, 3, 13, 39, 139, 417, 1807, 3851, 5421, 11553, 50063, 150189, 535289, 1605867, 6958757, 20876271]

約数ペア:

[(1, 20876271), (3, 6958757), (13, 1605867), (39, 535289), (139, 150189), (417, 50063), (1807, 11553), (3851, 5421)]