28291291

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1\times {\mathrm{487}}^1$

素因数の和:730

約数の個数: 16

約数和(自身を含む): 33324544

約数和(自身を除く): 5033253

約数列:

[1, 7, 43, 193, 301, 487, 1351, 3409, 8299, 20941, 58093, 93991, 146587, 657937, 4041613, 28291291]

約数ペア:

[(1, 28291291), (7, 4041613), (43, 657937), (193, 146587), (301, 93991), (487, 58093), (1351, 20941), (3409, 8299)]