20210866

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{7547}}^1$

素因数の和:7665

約数の個数: 16

約数和(自身を含む): 32969664

約数和(自身を除く): 12758798

約数列:

[1, 2, 13, 26, 103, 206, 1339, 2678, 7547, 15094, 98111, 196222, 777341, 1554682, 10105433, 20210866]

約数ペア:

[(1, 20210866), (2, 10105433), (13, 1554682), (26, 777341), (103, 196222), (206, 98111), (1339, 15094), (2678, 7547)]