21470547

素因数分解:

$3^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{3691}}^1$

素因数の和:3978

約数の個数: 16

約数和(自身を含む): 32844032

約数和(自身を除く): 11373485

約数列:

[1, 3, 7, 21, 277, 831, 1939, 3691, 5817, 11073, 25837, 77511, 1022407, 3067221, 7156849, 21470547]

約数ペア:

[(1, 21470547), (3, 7156849), (7, 3067221), (21, 1022407), (277, 77511), (831, 25837), (1939, 11073), (3691, 5817)]