28088721

素因数分解:

$3^3\times {\mathrm{73}}^1\times {\mathrm{14251}}^1$

素因数の和:14333

約数の個数: 16

約数和(自身を含む): 42185920

約数和(自身を除く): 14097199

約数列:

[1, 3, 9, 27, 73, 219, 657, 1971, 14251, 42753, 128259, 384777, 1040323, 3120969, 9362907, 28088721]

約数ペア:

[(1, 28088721), (3, 9362907), (9, 3120969), (27, 1040323), (73, 384777), (219, 128259), (657, 42753), (1971, 14251)]