20948641

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{401}}^1\times {\mathrm{439}}^1$

素因数の和:864

約数の個数: 16

約数和(自身を含む): 25470720

約数和(自身を除く): 4522079

約数列:

[1, 7, 17, 119, 401, 439, 2807, 3073, 6817, 7463, 47719, 52241, 176039, 1232273, 2992663, 20948641]

約数ペア:

[(1, 20948641), (7, 2992663), (17, 1232273), (119, 176039), (401, 52241), (439, 47719), (2807, 7463), (3073, 6817)]