Okay, this is kind of wierd. Almost everything in the ES world relates to the number 9, or the number 8. There are, of course, 9 divines.
There are 9 provinces of Tamriel (Hammerfell was once two territories, you could also keep the number as

There are 16 Daedra Princes, twice the number of the original amount of Divines. (8 + 8 = 16)
There are 16 realms of Oblivion. (duh)
There are 9 races.
There are 9 attributes.
There are 9 main cities in the province of Cyrodiil.
There are 8 main cities in Black Marsh.
There are 8 main cities in Elswyr.
There are 9 main cities in Hammerfell.
There are 8 main cities in High Rock.
There are 8 main cities in Morrowind.
There are 8 main cities in Skyrim.
There are 8 main cities in the Summerset Isles.
There are 8 main cities in Valenwood.
There are proboably more, let me know if you find any.