21105833

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1\times {\mathrm{401}}^1$

素因数の和:584

約数の個数: 16

約数和(自身を含む): 24750336

約数和(自身を除く): 3644503

約数列:

[1, 7, 73, 103, 401, 511, 721, 2807, 7519, 29273, 41303, 52633, 204911, 289121, 3015119, 21105833]

約数ペア:

[(1, 21105833), (7, 3015119), (73, 289121), (103, 204911), (401, 52633), (511, 41303), (721, 29273), (2807, 7519)]