21190316

素因数分解:

$2^2\times 7^1\times {\mathrm{199}}^1\times {\mathrm{3803}}^1$

素因数の和:4013

約数の個数: 24

約数和(自身を含む): 42604800

約数和(自身を除く): 21414484

約数列:

[1, 2, 4, 7, 14, 28, 199, 398, 796, 1393, 2786, 3803, 5572, 7606, 15212, 26621, 53242, 106484, 756797, 1513594, 3027188, 5297579, 10595158, 21190316]

約数ペア:

[(1, 21190316), (2, 10595158), (4, 5297579), (7, 3027188), (14, 1513594), (28, 756797), (199, 106484), (398, 53242), (796, 26621), (1393, 15212), (2786, 7606), (3803, 5572)]