2021819913

素因数分解:

$3^3\times {\mathrm{139}}^1\times {\mathrm{538721}}^1$

素因数の和:538869

約数の個数: 16

約数和(自身を含む): 3016843200

約数和(自身を除く): 995023287

約数列:

[1, 3, 9, 27, 139, 417, 1251, 3753, 538721, 1616163, 4848489, 14545467, 74882219, 224646657, 673939971, 2021819913]

約数ペア:

[(1, 2021819913), (3, 673939971), (9, 224646657), (27, 74882219), (139, 14545467), (417, 4848489), (1251, 1616163), (3753, 538721)]