2907009

素因数分解:

$3^5\times 7^1\times {\mathrm{1709}}^1$

素因数の和:1731

約数の個数: 24

約数和(自身を含む): 4979520

約数和(自身を除く): 2072511

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 1709, 5127, 11963, 15381, 35889, 46143, 107667, 138429, 323001, 415287, 969003, 2907009]

約数ペア:

[(1, 2907009), (3, 969003), (7, 415287), (9, 323001), (21, 138429), (27, 107667), (63, 46143), (81, 35889), (189, 15381), (243, 11963), (567, 5127), (1701, 1709)]