How to have different sidebar depending on pages

Hi guys,
I need to display a different sidebar depending on the page or child of, so I have

<?php
if (is_page('405'))
{ get_sidebar('2');}
elseif ( is_page('98') )
{get_sidebar('3');}
else
{ get_sidebar(); }
?>

but I can’t figure out how to make it calls the same sidebar if we are in a sub-page

Thanks for any help