12775721

素因数分解:

$7^4\times {\mathrm{17}}^1\times {\mathrm{313}}^1$

素因数の和:358

約数の個数: 20

約数和(自身を含む): 15831252

約数和(自身を除く): 3055531

約数列:

[1, 7, 17, 49, 119, 313, 343, 833, 2191, 2401, 5321, 5831, 15337, 37247, 40817, 107359, 260729, 751513, 1825103, 12775721]

約数ペア:

[(1, 12775721), (7, 1825103), (17, 751513), (49, 260729), (119, 107359), (313, 40817), (343, 37247), (833, 15337), (2191, 5831), (2401, 5321)]