21084717

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1\times {\mathrm{653}}^1$

素因数の和:932

約数の個数: 16

約数和(自身を含む): 28880640

約数和(自身を除く): 7795923

約数列:

[1, 3, 47, 141, 229, 653, 687, 1959, 10763, 30691, 32289, 92073, 149537, 448611, 7028239, 21084717]

約数ペア:

[(1, 21084717), (3, 7028239), (47, 448611), (141, 149537), (229, 92073), (653, 32289), (687, 30691), (1959, 10763)]