21460375

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{10099}}^1$

素因数の和:10131

約数の個数: 16

約数和(自身を含む): 28360800

約数和(自身を除く): 6900425

約数列:

[1, 5, 17, 25, 85, 125, 425, 2125, 10099, 50495, 171683, 252475, 858415, 1262375, 4292075, 21460375]

約数ペア:

[(1, 21460375), (5, 4292075), (17, 1262375), (25, 858415), (85, 252475), (125, 171683), (425, 50495), (2125, 10099)]