19205997

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{2437}}^1$

素因数の和:2548

約数の個数: 16

約数和(自身を含む): 26681472

約数和(自身を除く): 7475475

約数列:

[1, 3, 37, 71, 111, 213, 2437, 2627, 7311, 7881, 90169, 173027, 270507, 519081, 6401999, 19205997]

約数ペア:

[(1, 19205997), (3, 6401999), (37, 519081), (71, 270507), (111, 173027), (213, 90169), (2437, 7881), (2627, 7311)]