20603205

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{65407}}^1$

素因数の和:65425

約数の個数: 24

約数和(自身を含む): 40814592

約数和(自身を除く): 20211387

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 65407, 196221, 327035, 457849, 588663, 981105, 1373547, 2289245, 2943315, 4120641, 6867735, 20603205]

約数ペア:

[(1, 20603205), (3, 6867735), (5, 4120641), (7, 2943315), (9, 2289245), (15, 1373547), (21, 981105), (35, 588663), (45, 457849), (63, 327035), (105, 196221), (315, 65407)]