18718161

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{81031}}^1$

素因数の和:81052

約数の個数: 16

約数和(自身を含む): 31116288

約数和(自身を除く): 12398127

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 81031, 243093, 567217, 891341, 1701651, 2674023, 6239387, 18718161]

約数ペア:

[(1, 18718161), (3, 6239387), (7, 2674023), (11, 1701651), (21, 891341), (33, 567217), (77, 243093), (231, 81031)]