20081889

素因数分解:

$3^2\times {\mathrm{59}}^2\times {\mathrm{641}}^1$

素因数の和:765

約数の個数: 18

約数和(自身を含む): 29553186

約数和(自身を除く): 9471297

約数列:

[1, 3, 9, 59, 177, 531, 641, 1923, 3481, 5769, 10443, 31329, 37819, 113457, 340371, 2231321, 6693963, 20081889]

約数ペア:

[(1, 20081889), (3, 6693963), (9, 2231321), (59, 340371), (177, 113457), (531, 37819), (641, 31329), (1923, 10443), (3481, 5769)]