19913421

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{6221}}^1$

素因数の和:6332

約数の個数: 16

約数和(自身を含む): 29268288

約数和(自身を除く): 9354867

約数列:

[1, 3, 11, 33, 97, 291, 1067, 3201, 6221, 18663, 68431, 205293, 603437, 1810311, 6637807, 19913421]

約数ペア:

[(1, 19913421), (3, 6637807), (11, 1810311), (33, 603437), (97, 205293), (291, 68431), (1067, 18663), (3201, 6221)]