28520247

素因数分解:

$3^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{4339}}^1$

素因数の和:4662

約数の個数: 16

約数和(自身を含む): 43608320

約数和(自身を除く): 15088073

約数列:

[1, 3, 7, 21, 313, 939, 2191, 4339, 6573, 13017, 30373, 91119, 1358107, 4074321, 9506749, 28520247]

約数ペア:

[(1, 28520247), (3, 9506749), (7, 4074321), (21, 1358107), (313, 91119), (939, 30373), (2191, 13017), (4339, 6573)]