20129319

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{7793}}^1$

素因数の和:7847

約数の個数: 24

約数和(自身を含む): 34044192

約数和(自身を除く): 13914873

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 7793, 23379, 54551, 70137, 163653, 319513, 490959, 958539, 2236591, 2875617, 6709773, 20129319]

約数ペア:

[(1, 20129319), (3, 6709773), (7, 2875617), (9, 2236591), (21, 958539), (41, 490959), (63, 319513), (123, 163653), (287, 70137), (369, 54551), (861, 23379), (2583, 7793)]