28071939

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{16921}}^1$

素因数の和:17010

約数の個数: 16

約数和(自身を含む): 43320320

約数和(自身を除く): 15248381

約数列:

[1, 3, 7, 21, 79, 237, 553, 1659, 16921, 50763, 118447, 355341, 1336759, 4010277, 9357313, 28071939]

約数ペア:

[(1, 28071939), (3, 9357313), (7, 4010277), (21, 1336759), (79, 355341), (237, 118447), (553, 50763), (1659, 16921)]