81859981

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{6311}}^1$

素因数の和:6444

約数の個数: 16

約数和(自身を含む): 99982080

約数和(自身を除く): 18122099

約数列:

[1, 7, 17, 109, 119, 763, 1853, 6311, 12971, 44177, 107287, 687899, 751009, 4815293, 11694283, 81859981]

約数ペア:

[(1, 81859981), (7, 11694283), (17, 4815293), (109, 751009), (119, 687899), (763, 107287), (1853, 44177), (6311, 12971)]