18821619

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{199}}^1$

素因数の和:352

約数の個数: 32

約数和(自身を含む): 29184000

約数和(自身を除く): 10362381

約数列:

[1, 3, 9, 27, 31, 93, 113, 199, 279, 339, 597, 837, 1017, 1791, 3051, 3503, 5373, 6169, 10509, 18507, 22487, 31527, 55521, 67461, 94581, 166563, 202383, 607149, 697097, 2091291, 6273873, 18821619]

約数ペア:

[(1, 18821619), (3, 6273873), (9, 2091291), (27, 697097), (31, 607149), (93, 202383), (113, 166563), (199, 94581), (279, 67461), (339, 55521), (597, 31527), (837, 22487), (1017, 18507), (1791, 10509), (3051, 6169), (3503, 5373)]