Răspuns :
divizorii lui 4 sunt 1,2,4.
6 = 1,2,3,6
8 = 1,2,4,8
9 = 1,3,9
12 = 1,2,3,4,6,12
14 = 1,2,7,14
15 = 1,3,5
21 = 1,2,7,21,3
6 = 1,2,3,6
8 = 1,2,4,8
9 = 1,3,9
12 = 1,2,3,4,6,12
14 = 1,2,7,14
15 = 1,3,5
21 = 1,2,7,21,3
4 = 1,2,4
6 = 1,2,3,6
8 = 1,2,4,8
9 = 1,3,9
12 = ,1,2,3,4,6,12
14 = 1,2,7,14
15 = 1,3,5,15
21 = 1, 3,7,21
6 = 1,2,3,6
8 = 1,2,4,8
9 = 1,3,9
12 = ,1,2,3,4,6,12
14 = 1,2,7,14
15 = 1,3,5,15
21 = 1, 3,7,21