81072243

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{29927}}^1$

素因数の和:29983

約数の個数: 24

約数和(自身を含む): 136950528

約数和(自身を除く): 55878285

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 29927, 89781, 209489, 269343, 628467, 1286861, 1885401, 3860583, 9008027, 11581749, 27024081, 81072243]

約数ペア:

[(1, 81072243), (3, 27024081), (7, 11581749), (9, 9008027), (21, 3860583), (43, 1885401), (63, 1286861), (129, 628467), (301, 269343), (387, 209489), (903, 89781), (2709, 29927)]