20166223

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{821}}^1$

素因数の和:879

約数の個数: 24

約数和(自身を含む): 26238240

約数和(自身を除く): 6072017

約数列:

[1, 7, 11, 29, 77, 121, 203, 319, 821, 847, 2233, 3509, 5747, 9031, 23809, 24563, 63217, 99341, 166663, 261899, 695387, 1833293, 2880889, 20166223]

約数ペア:

[(1, 20166223), (7, 2880889), (11, 1833293), (29, 695387), (77, 261899), (121, 166663), (203, 99341), (319, 63217), (821, 24563), (847, 23809), (2233, 9031), (3509, 5747)]