16640181

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{199}}^1$

素因数の和:390

約数の個数: 32

約数和(自身を含む): 26240000

約数和(自身を除く): 9599819

約数列:

[1, 3, 9, 19, 27, 57, 163, 171, 199, 489, 513, 597, 1467, 1791, 3097, 3781, 4401, 5373, 9291, 11343, 27873, 32437, 34029, 83619, 97311, 102087, 291933, 616303, 875799, 1848909, 5546727, 16640181]

約数ペア:

[(1, 16640181), (3, 5546727), (9, 1848909), (19, 875799), (27, 616303), (57, 291933), (163, 102087), (171, 97311), (199, 83619), (489, 34029), (513, 32437), (597, 27873), (1467, 11343), (1791, 9291), (3097, 5373), (3781, 4401)]