128515639

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{50857}}^1$

素因数の和:50902

約数の個数: 12

約数和(自身を含む): 155015184

約数和(自身を除く): 26499545

約数列:

[1, 7, 19, 133, 361, 2527, 50857, 355999, 966283, 6763981, 18359377, 128515639]

約数ペア:

[(1, 128515639), (7, 18359377), (19, 6763981), (133, 966283), (361, 355999), (2527, 50857)]