Respuesta :

1 has 1 factor

2 has 2 factors

3 has 2 factors

4 has 3 factors

5 has 2 factors

6 has 4 factors

7 has 2 factors

8 has 4 factors

9 has 3 factors

10 has 4 factors

11 has 2 factors

12 has 6 factors

13 has 2 factors

14 has 4 factors

15 has 4 factors

16 has 5 factors

17 has 2 factors

18 has 6 factors

19 has 2 factors

20 has 6 factors

Sorry if wrong

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