9920505

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{883}}^1$

素因数の和:1005

約数の個数: 32

約数和(自身を含む): 18330624

約数和(自身を除く): 8410119

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 107, 321, 535, 749, 883, 1605, 2247, 2649, 3745, 4415, 6181, 11235, 13245, 18543, 30905, 92715, 94481, 283443, 472405, 661367, 1417215, 1984101, 3306835, 9920505]

約数ペア:

[(1, 9920505), (3, 3306835), (5, 1984101), (7, 1417215), (15, 661367), (21, 472405), (35, 283443), (105, 94481), (107, 92715), (321, 30905), (535, 18543), (749, 13245), (883, 11235), (1605, 6181), (2247, 4415), (2649, 3745)]