Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_14984103_1 (week VARCHAR, opponent VARCHAR)
### Question:
Name the number  of weeks for san francisco 49ers
### Answer:
SELECT COUNT(week) FROM table_14984103_1 WHERE opponent = "San Francisco 49ers"