Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_19624708_1 (number VARCHAR, sp VARCHAR, finishing_position VARCHAR)

### Question ###
How many numbers have sp of 20/1 and a finishing position of fence 19?

### Accurate SQL ###

SELECT COUNT(number) FROM table_19624708_1 WHERE sp = "20/1" AND finishing_position = "Fence 19"