19984275

素因数分解:

$3^2\times 5^2\times {\mathrm{88819}}^1$

素因数の和:88835

約数の個数: 18

約数和(自身を含む): 35794460

約数和(自身を除く): 15810185

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 88819, 266457, 444095, 799371, 1332285, 2220475, 3996855, 6661425, 19984275]

約数ペア:

[(1, 19984275), (3, 6661425), (5, 3996855), (9, 2220475), (15, 1332285), (25, 799371), (45, 444095), (75, 266457), (225, 88819)]