You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[5,6-dimethyl-2-(5-propan-2-yl-1,4-diazepan-1-yl)pyrimidin-4-yl]-1H-indazol-5-amine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C21H29N7
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