20474237

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1\times {\mathrm{389}}^1$

素因数の和:572

約数の個数: 16

約数和(自身を含む): 24011520

約数和(自身を除く): 3537283

約数列:

[1, 7, 73, 103, 389, 511, 721, 2723, 7519, 28397, 40067, 52633, 198779, 280469, 2924891, 20474237]

約数ペア:

[(1, 20474237), (7, 2924891), (73, 280469), (103, 198779), (389, 52633), (511, 40067), (721, 28397), (2723, 7519)]