20808425

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{4451}}^1$

素因数の和:4489

約数の個数: 24

約数和(自身を含む): 29810592

約数和(自身を除く): 9002167

約数列:

[1, 5, 11, 17, 25, 55, 85, 187, 275, 425, 935, 4451, 4675, 22255, 48961, 75667, 111275, 244805, 378335, 832337, 1224025, 1891675, 4161685, 20808425]

約数ペア:

[(1, 20808425), (5, 4161685), (11, 1891675), (17, 1224025), (25, 832337), (55, 378335), (85, 244805), (187, 111275), (275, 75667), (425, 48961), (935, 22255), (4451, 4675)]