20984705

素因数分解:

$5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{5821}}^1$

素因数の和:5936

約数の個数: 16

約数和(自身を含む): 29063424

約数和(自身を除く): 8078719

約数列:

[1, 5, 7, 35, 103, 515, 721, 3605, 5821, 29105, 40747, 203735, 599563, 2997815, 4196941, 20984705]

約数ペア:

[(1, 20984705), (5, 4196941), (7, 2997815), (35, 599563), (103, 203735), (515, 40747), (721, 29105), (3605, 5821)]