| 1 |
| 14 |
| 3 |
| 14×3 |
=
| 2 |
| 14×3 |
| 1 |
| 14×3 |
=
| 1 |
| 21 |
| 1 |
| 42 |
=
| 1 |
| 21 |
| 2 |
| 42×3 |
| 1 |
| 42×3 |
=
| 1 |
| 21 |
| 1 |
| 63 |
| 1 |
| 126 |
=
| 1 |
| 21 |
| 1 |
| 63 |
| 2 |
| 126×3 |
| 1 |
| 126×3 |
=
| 1 |
| 21 |
| 1 |
| 63 |
| 1 |
| 189 |
| 1 |
| 378 |
故答案为：21，63，189，378．
| 1 |
| 14 |
| 1 |
| ( ) |
| 1 |
| ( ) |
| 1 |
| ( ) |
| 1 |
| ( ) |
| 1 |
| 14 |
| 3 |
| 14×3 |
| 2 |
| 14×3 |
| 1 |
| 14×3 |
| 1 |
| 21 |
| 1 |
| 42 |
| 1 |
| 21 |
| 2 |
| 42×3 |
| 1 |
| 42×3 |
| 1 |
| 21 |
| 1 |
| 63 |
| 1 |
| 126 |
| 1 |
| 21 |
| 1 |
| 63 |
| 2 |
| 126×3 |
| 1 |
| 126×3 |
| 1 |
| 21 |
| 1 |
| 63 |
| 1 |
| 189 |
| 1 |
| 378 |