21811741

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{773}}^1$

素因数の和:948

約数の個数: 16

約数和(自身を含む): 26006400

約数和(自身を除く): 4194659

約数列:

[1, 7, 29, 139, 203, 773, 973, 4031, 5411, 22417, 28217, 107447, 156919, 752129, 3115963, 21811741]

約数ペア:

[(1, 21811741), (7, 3115963), (29, 752129), (139, 156919), (203, 107447), (773, 28217), (973, 22417), (4031, 5411)]