Hi,
There is no option to do that.
It would require the customization of the product / listing.php view file for your backend template via the menu Display>Views by a developper to display an input field like that, and then some plugin to handle the saving of the values when modified.
So it's not impossible, but it requires spending some money for development.
As an alternative, if you're able to easily display all the products of a page on the same products listing page (with the filtering mechanism at the top or something), you can use the checkboxes on the left to select the products of a page, and then click on the "actions" button at the top. That will open a popup where you can select the action "update the values" on the column of your custom field where the page number is stored and enter the value you want for it. When, you validate, it will update the value in the custom field of all the products selected in one go.