20491239

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{5659}}^1$

素因数の和:5750

約数の個数: 16

約数和(自身を含む): 29341440

約数和(自身を除く): 8850201

約数列:

[1, 3, 17, 51, 71, 213, 1207, 3621, 5659, 16977, 96203, 288609, 401789, 1205367, 6830413, 20491239]

約数ペア:

[(1, 20491239), (3, 6830413), (17, 1205367), (51, 401789), (71, 288609), (213, 96203), (1207, 16977), (3621, 5659)]