28480389

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79777}}^1$

素因数の和:79804

約数の個数: 16

約数和(自身を含む): 45952128

約数和(自身を除く): 17471739

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 79777, 239331, 558439, 1356209, 1675317, 4068627, 9493463, 28480389]

約数ペア:

[(1, 28480389), (3, 9493463), (7, 4068627), (17, 1675317), (21, 1356209), (51, 558439), (119, 239331), (357, 79777)]