20681994

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{181421}}^1$

素因数の和:181445

約数の個数: 16

約数和(自身を含む): 43541280

約数和(自身を除く): 22859286

約数列:

[1, 2, 3, 6, 19, 38, 57, 114, 181421, 362842, 544263, 1088526, 3446999, 6893998, 10340997, 20681994]

約数ペア:

[(1, 20681994), (2, 10340997), (3, 6893998), (6, 3446999), (19, 1088526), (38, 544263), (57, 362842), (114, 181421)]