28213191

素因数分解:

$3^4\times {\mathrm{79}}^1\times {\mathrm{4409}}^1$

素因数の和:4500

約数の個数: 20

約数和(自身を含む): 42688800

約数和(自身を除く): 14475609

約数列:

[1, 3, 9, 27, 79, 81, 237, 711, 2133, 4409, 6399, 13227, 39681, 119043, 348311, 357129, 1044933, 3134799, 9404397, 28213191]

約数ペア:

[(1, 28213191), (3, 9404397), (9, 3134799), (27, 1044933), (79, 357129), (81, 348311), (237, 119043), (711, 39681), (2133, 13227), (4409, 6399)]