20864525

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{4463}}^1$

素因数の和:4501

約数の個数: 24

約数和(自身を含む): 29890944

約数和(自身を除く): 9026419

約数列:

[1, 5, 11, 17, 25, 55, 85, 187, 275, 425, 935, 4463, 4675, 22315, 49093, 75871, 111575, 245465, 379355, 834581, 1227325, 1896775, 4172905, 20864525]

約数ペア:

[(1, 20864525), (5, 4172905), (11, 1896775), (17, 1227325), (25, 834581), (55, 379355), (85, 245465), (187, 111575), (275, 75871), (425, 49093), (935, 22315), (4463, 4675)]