20657507

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{641}}^1$

素因数の和:758

約数の個数: 16

約数和(自身を含む): 23224992

約数和(自身を除く): 2567485

約数列:

[1, 13, 37, 67, 481, 641, 871, 2479, 8333, 23717, 32227, 42947, 308321, 558311, 1589039, 20657507]

約数ペア:

[(1, 20657507), (13, 1589039), (37, 558311), (67, 308321), (481, 42947), (641, 32227), (871, 23717), (2479, 8333)]