81864819

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{1063}}^1$

素因数の和:1311

約数の個数: 24

約数和(自身を含む): 121721600

約数和(自身を除く): 39856781

約数列:

[1, 3, 9, 43, 129, 199, 387, 597, 1063, 1791, 3189, 8557, 9567, 25671, 45709, 77013, 137127, 211537, 411381, 634611, 1903833, 9096091, 27288273, 81864819]

約数ペア:

[(1, 81864819), (3, 27288273), (9, 9096091), (43, 1903833), (129, 634611), (199, 411381), (387, 211537), (597, 137127), (1063, 77013), (1791, 45709), (3189, 25671), (8557, 9567)]