20518309

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{22039}}^1$

素因数の和:22072

約数の個数: 12

約数和(自身を含む): 25125600

約数和(自身を除く): 4607291

約数列:

[1, 7, 19, 49, 133, 931, 22039, 154273, 418741, 1079911, 2931187, 20518309]

約数ペア:

[(1, 20518309), (7, 2931187), (19, 1079911), (49, 418741), (133, 154273), (931, 22039)]