21154411521

素因数分解:

$3^3\times {\mathrm{7907}}^1\times {\mathrm{99089}}^1$

素因数の和:107005

約数の個数: 16

約数和(自身を含む): 31344148800

約数和(自身を除く): 10189737279

約数列:

[1, 3, 9, 27, 7907, 23721, 71163, 99089, 213489, 297267, 891801, 2675403, 783496723, 2350490169, 7051470507, 21154411521]

約数ペア:

[(1, 21154411521), (3, 7051470507), (9, 2350490169), (27, 783496723), (7907, 2675403), (23721, 891801), (71163, 297267), (99089, 213489)]