18995669

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{547}}^1$

素因数の和:617

約数の個数: 24

約数和(自身を含む): 24489024

約数和(自身を除く): 5493355

約数列:

[1, 7, 11, 41, 77, 121, 287, 451, 547, 847, 3157, 3829, 4961, 6017, 22427, 34727, 42119, 66187, 156989, 246697, 463309, 1726879, 2713667, 18995669]

約数ペア:

[(1, 18995669), (7, 2713667), (11, 1726879), (41, 463309), (77, 246697), (121, 156989), (287, 66187), (451, 42119), (547, 34727), (847, 22427), (3157, 6017), (3829, 4961)]