20809733

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{4457}}^1$

素因数の和:4516

約数の個数: 16

約数和(自身を含む): 25678080

約数和(自身を除く): 4868347

約数列:

[1, 7, 23, 29, 161, 203, 667, 4457, 4669, 31199, 102511, 129253, 717577, 904771, 2972819, 20809733]

約数ペア:

[(1, 20809733), (7, 2972819), (23, 904771), (29, 717577), (161, 129253), (203, 102511), (667, 31199), (4457, 4669)]