28169687

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{313}}^1$

素因数の和:399

約数の個数: 32

約数和(自身を含む): 37137408

約数和(自身を除く): 8967721

約数列:

[1, 7, 13, 23, 43, 91, 161, 299, 301, 313, 559, 989, 2093, 2191, 3913, 4069, 6923, 7199, 12857, 13459, 28483, 50393, 89999, 93587, 94213, 174967, 309557, 655109, 1224769, 2166899, 4024241, 28169687]

約数ペア:

[(1, 28169687), (7, 4024241), (13, 2166899), (23, 1224769), (43, 655109), (91, 309557), (161, 174967), (299, 94213), (301, 93587), (313, 89999), (559, 50393), (989, 28483), (2093, 13459), (2191, 12857), (3913, 7199), (4069, 6923)]