18212991

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{2311}}^1$

素因数の和:2422

約数の個数: 16

約数和(自身を含む): 25302528

約数和(自身を除く): 7089537

約数列:

[1, 3, 37, 71, 111, 213, 2311, 2627, 6933, 7881, 85507, 164081, 256521, 492243, 6070997, 18212991]

約数ペア:

[(1, 18212991), (3, 6070997), (37, 492243), (71, 256521), (111, 164081), (213, 85507), (2311, 7881), (2627, 6933)]