201903345

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{640963}}^1$

素因数の和:640981

約数の個数: 24

約数和(自身を含む): 399961536

約数和(自身を除く): 198058191

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 640963, 1922889, 3204815, 4486741, 5768667, 9614445, 13460223, 22433705, 28843335, 40380669, 67301115, 201903345]

約数ペア:

[(1, 201903345), (3, 67301115), (5, 40380669), (7, 28843335), (9, 22433705), (15, 13460223), (21, 9614445), (35, 5768667), (45, 4486741), (63, 3204815), (105, 1922889), (315, 640963)]