21997649195

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{2749}}^1\times {\mathrm{22541}}^1$

素因数の和:25366

約数の個数: 16

約数和(自身を含む): 26779896000

約数和(自身を除く): 4782246805

約数列:

[1, 5, 71, 355, 2749, 13745, 22541, 112705, 195179, 975895, 1600411, 8002055, 61965209, 309826045, 4399529839, 21997649195]

約数ペア:

[(1, 21997649195), (5, 4399529839), (71, 309826045), (355, 61965209), (2749, 8002055), (13745, 1600411), (22541, 975895), (112705, 195179)]