Please, call your landlord, get the heaters fixrf ASAP. Meanwhile, yes, you could turn the stove on, if gas, you will need to crack open the kitchen window )not a big crack, just enough to let fresh air in) If it's electric, go for it, but be careful for nothing left on top of the stove (no matter what kind of range), or, instead, turn on the oven.
I agree, if you can bake some cookies, or soemthing, boil some water, drink hot cocoa or something (just plain hot water) will help you warm up.
If it is gas--DO NOT let it run more than a few minutes, so you won't take a chance of passing out, etc.
Think warm thoughts, Take care.