test-parents.html

<script type='text/javascript' src='http://code.jquery.com/jquery-1.11.1.min.js'>

</script>

<script>
$(function(){
	var div = $('.a1a');
	var divs = div.parents('div');
	console.log(divs);
});
</script>


<div class='root'>
<div class='a'>
<div class='a1'>
	<div class='a1a'></div>
</div>
<div class='a2'>
</div>
</div>
<div class='b'>
<div class='b1'>
</div>
<div class='b2'>
</div>
</div>
</div>

output

m.fn.init[5]
0: div.a1
1: div.a
2: div.root