2687130243

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{991927}}^1$

素因数の和:991983

約数の個数: 24

約数和(自身を含む): 4539062528

約数和(自身を除く): 1851932285

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 991927, 2975781, 6943489, 8927343, 20830467, 42652861, 62491401, 127958583, 298570027, 383875749, 895710081, 2687130243]

約数ペア:

[(1, 2687130243), (3, 895710081), (7, 383875749), (9, 298570027), (21, 127958583), (43, 62491401), (63, 42652861), (129, 20830467), (301, 8927343), (387, 6943489), (903, 2975781), (2709, 991927)]