20196841

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{571}}^1$

素因数の和:772

約数の個数: 16

約数和(自身を含む): 24014848

約数和(自身を除く): 3818007

約数列:

[1, 7, 31, 163, 217, 571, 1141, 3997, 5053, 17701, 35371, 93073, 123907, 651511, 2885263, 20196841]

約数ペア:

[(1, 20196841), (7, 2885263), (31, 651511), (163, 123907), (217, 93073), (571, 35371), (1141, 17701), (3997, 5053)]