12405155

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{20849}}^1$

素因数の和:20878

約数の個数: 16

約数和(自身を含む): 18014400

約数和(自身を除く): 5609245

約数列:

[1, 5, 7, 17, 35, 85, 119, 595, 20849, 104245, 145943, 354433, 729715, 1772165, 2481031, 12405155]

約数ペア:

[(1, 12405155), (5, 2481031), (7, 1772165), (17, 729715), (35, 354433), (85, 145943), (119, 104245), (595, 20849)]