20566889

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{401}}^1\times {\mathrm{431}}^1$

素因数の和:856

約数の個数: 16

約数和(自身を含む): 25007616

約数和(自身を除く): 4440727

約数列:

[1, 7, 17, 119, 401, 431, 2807, 3017, 6817, 7327, 47719, 51289, 172831, 1209817, 2938127, 20566889]

約数ペア:

[(1, 20566889), (7, 2938127), (17, 1209817), (119, 172831), (401, 51289), (431, 47719), (2807, 7327), (3017, 6817)]