21853161

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{3109}}^1$

素因数の和:3197

約数の個数: 24

約数和(自身を含む): 34931520

約数和(自身を除く): 13078359

約数列:

[1, 3, 9, 11, 33, 71, 99, 213, 639, 781, 2343, 3109, 7029, 9327, 27981, 34199, 102597, 220739, 307791, 662217, 1986651, 2428129, 7284387, 21853161]

約数ペア:

[(1, 21853161), (3, 7284387), (9, 2428129), (11, 1986651), (33, 662217), (71, 307791), (99, 220739), (213, 102597), (639, 34199), (781, 27981), (2343, 9327), (3109, 7029)]