2620689

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1999}}^1$

素因数の和:2044

約数の個数: 16

約数和(自身を含む): 3840000

約数和(自身を除く): 1219311

約数列:

[1, 3, 19, 23, 57, 69, 437, 1311, 1999, 5997, 37981, 45977, 113943, 137931, 873563, 2620689]

約数ペア:

[(1, 2620689), (3, 873563), (19, 137931), (23, 113943), (57, 45977), (69, 37981), (437, 5997), (1311, 1999)]