2005697781

素因数分解:

$3^4\times {\mathrm{1709}}^1\times {\mathrm{14489}}^1$

素因数の和:16210

約数の個数: 20

約数和(自身を含む): 2998125900

約数和(自身を除く): 992428119

約数列:

[1, 3, 9, 27, 81, 1709, 5127, 14489, 15381, 43467, 46143, 130401, 138429, 391203, 1173609, 24761701, 74285103, 222855309, 668565927, 2005697781]

約数ペア:

[(1, 2005697781), (3, 668565927), (9, 222855309), (27, 74285103), (81, 24761701), (1709, 1173609), (5127, 391203), (14489, 138429), (15381, 130401), (43467, 46143)]