20809902032

素因数分解:

$2^4\times {\mathrm{3323}}^1\times {\mathrm{391399}}^1$

素因数の和:394730

約数の個数: 20

約数和(自身を含む): 40331421600

約数和(自身を除く): 19521519568

約数列:

[1, 2, 4, 8, 16, 3323, 6646, 13292, 26584, 53168, 391399, 782798, 1565596, 3131192, 6262384, 1300618877, 2601237754, 5202475508, 10404951016, 20809902032]

約数ペア:

[(1, 20809902032), (2, 10404951016), (4, 5202475508), (8, 2601237754), (16, 1300618877), (3323, 6262384), (6646, 3131192), (13292, 1565596), (26584, 782798), (53168, 391399)]