68521999

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{39631}}^1$

素因数の和:39670

約数の個数: 16

約数和(自身を含む): 88775680

約数和(自身を除く): 20253681

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 39631, 277417, 515203, 752989, 3606421, 5270923, 9788857, 68521999]

約数ペア:

[(1, 68521999), (7, 9788857), (13, 5270923), (19, 3606421), (91, 752989), (133, 515203), (247, 277417), (1729, 39631)]