This is the 276th most frequent Portuguese word.
diversos
Various; several; diverse.
Here, 'diversos' is used to mean 'various,' indicating a variety of books present.
Há diversos livros na estante.
There are various books on the shelf.
The word 'diversos' here points to a number of contributing factors, emphasizing variety or multiplicity.
Diversos fatores contribuíram para o sucesso do projeto.
Several factors contributed to the project's success.
In this sentence, 'diversos' means 'several,' referring to an amount larger than one but not specific.