20288121

素因数分解:

$3^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{5927}}^1$

素因数の和:6100

約数の個数: 16

約数和(自身を含む): 31110144

約数和(自身を除く): 10822023

約数列:

[1, 3, 7, 21, 163, 489, 1141, 3423, 5927, 17781, 41489, 124467, 966101, 2898303, 6762707, 20288121]

約数ペア:

[(1, 20288121), (3, 6762707), (7, 2898303), (21, 966101), (163, 124467), (489, 41489), (1141, 17781), (3423, 5927)]