2564487

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{4999}}^1$

素因数の和:5027

約数の個数: 16

約数和(自身を含む): 4000000

約数和(自身を除く): 1435513

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 4999, 14997, 44991, 94981, 134973, 284943, 854829, 2564487]

約数ペア:

[(1, 2564487), (3, 854829), (9, 284943), (19, 134973), (27, 94981), (57, 44991), (171, 14997), (513, 4999)]