Hi,
The component/hikashop part is added automatically by Joomla because you didn't provide a menu item.
So where that link is generated, you need to select the menu item you want to use (a HikaShop products or categories listing menu item) and then, instead of component/hikashop, Joomla will use the alias of the menu item and if that menu item is the default menu item of your website, it will remove that part completely.
The id of the product/category in the URLs can be removed with the "remove categories and products ids in URLs" setting, under the Features tab of the HikaShop configuration.