28657845

素因数分解:

$3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{3907}}^1$

素因数の和:4081

約数の個数: 24

約数和(自身を含む): 49991136

約数和(自身を除く): 21333291

約数列:

[1, 3, 5, 9, 15, 45, 163, 489, 815, 1467, 2445, 3907, 7335, 11721, 19535, 35163, 58605, 175815, 636841, 1910523, 3184205, 5731569, 9552615, 28657845]

約数ペア:

[(1, 28657845), (3, 9552615), (5, 5731569), (9, 3184205), (15, 1910523), (45, 636841), (163, 175815), (489, 58605), (815, 35163), (1467, 19535), (2445, 11721), (3907, 7335)]