Find the number of factors of 2016.
求2016的因数个数为多少个．
<gadget id="calculator">5 + 1</gadget>
<output>6</output>

<gadget id="calculator">2 + 1</gadget>
<output>3</output>

<gadget id="calculator">1 + 1</gadget>
<output>2</output>

<gadget id="calculator">6 * 3 * 2</gadget>
<output>36</output>

<result>36</result>