20961073

素因数分解:

$7^3\times {\mathrm{23}}^1\times {\mathrm{2657}}^1$

素因数の和:2701

約数の個数: 16

約数和(自身を含む): 25516800

約数和(自身を除く): 4555727

約数列:

[1, 7, 23, 49, 161, 343, 1127, 2657, 7889, 18599, 61111, 130193, 427777, 911351, 2994439, 20961073]

約数ペア:

[(1, 20961073), (7, 2994439), (23, 911351), (49, 427777), (161, 130193), (343, 61111), (1127, 18599), (2657, 7889)]