20129121

素因数分解:

$3^3\times {\mathrm{79}}^1\times {\mathrm{9437}}^1$

素因数の和:9525

約数の個数: 16

約数和(自身を含む): 30201600

約数和(自身を除く): 10072479

約数列:

[1, 3, 9, 27, 79, 237, 711, 2133, 9437, 28311, 84933, 254799, 745523, 2236569, 6709707, 20129121]

約数ペア:

[(1, 20129121), (3, 6709707), (9, 2236569), (27, 745523), (79, 254799), (237, 84933), (711, 28311), (2133, 9437)]