28728639

素因数分解:

$3^2\times {\mathrm{73}}^2\times {\mathrm{599}}^1$

素因数の和:751

約数の個数: 18

約数和(自身を含む): 42143400

約数和(自身を除く): 13414761

約数列:

[1, 3, 9, 73, 219, 599, 657, 1797, 5329, 5391, 15987, 43727, 47961, 131181, 393543, 3192071, 9576213, 28728639]

約数ペア:

[(1, 28728639), (3, 9576213), (9, 3192071), (73, 393543), (219, 131181), (599, 47961), (657, 43727), (1797, 15987), (5329, 5391)]