811991999

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{469631}}^1$

素因数の和:469670

約数の個数: 16

約数和(自身を含む): 1051975680

約数和(自身を除く): 239983681

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 469631, 3287417, 6105203, 8922989, 42736421, 62460923, 115998857, 811991999]

約数ペア:

[(1, 811991999), (7, 115998857), (13, 62460923), (19, 42736421), (91, 8922989), (133, 6105203), (247, 3287417), (1729, 469631)]