81850491

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{1987}}^1$

素因数の和:2215

約数の個数: 24

約数和(自身を含む): 124051200

約数和(自身を除く): 42200709

約数列:

[1, 3, 9, 23, 69, 199, 207, 597, 1791, 1987, 4577, 5961, 13731, 17883, 41193, 45701, 137103, 395413, 411309, 1186239, 3558717, 9094499, 27283497, 81850491]

約数ペア:

[(1, 81850491), (3, 27283497), (9, 9094499), (23, 3558717), (69, 1186239), (199, 411309), (207, 395413), (597, 137103), (1791, 45701), (1987, 41193), (4577, 17883), (5961, 13731)]