20797161

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{90031}}^1$

素因数の和:90052

約数の個数: 16

約数和(自身を含む): 34572288

約数和(自身を除く): 13775127

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 90031, 270093, 630217, 990341, 1890651, 2971023, 6932387, 20797161]

約数ペア:

[(1, 20797161), (3, 6932387), (7, 2971023), (11, 1890651), (21, 990341), (33, 630217), (77, 270093), (231, 90031)]