20305089

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{18959}}^1$

素因数の和:18989

約数の個数: 24

約数和(自身を含む): 35493120

約数和(自身を除く): 15188031

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 18959, 56877, 132713, 170631, 322303, 398139, 966909, 1194417, 2256121, 2900727, 6768363, 20305089]

約数ペア:

[(1, 20305089), (3, 6768363), (7, 2900727), (9, 2256121), (17, 1194417), (21, 966909), (51, 398139), (63, 322303), (119, 170631), (153, 132713), (357, 56877), (1071, 18959)]