21326277

素因数分解:

$3^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{9491}}^1$

素因数の和:9608

約数の個数: 16

約数和(自身を含む): 32804352

約数和(自身を除く): 11478075

約数列:

[1, 3, 7, 21, 107, 321, 749, 2247, 9491, 28473, 66437, 199311, 1015537, 3046611, 7108759, 21326277]

約数ペア:

[(1, 21326277), (3, 7108759), (7, 3046611), (21, 1015537), (107, 199311), (321, 66437), (749, 28473), (2247, 9491)]