21000638869

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{27817}}^1\times {\mathrm{3719}}^1$

素因数の和:31572

約数の個数: 16

約数和(自身を含む): 24835910400

約数和(自身を除く): 3835271531

約数列:

[1, 7, 29, 203, 3719, 26033, 27817, 107851, 194719, 754957, 806693, 5646851, 103451423, 724159961, 3000091267, 21000638869]

約数ペア:

[(1, 21000638869), (7, 3000091267), (29, 724159961), (203, 103451423), (3719, 5646851), (26033, 806693), (27817, 754957), (107851, 194719)]