There are exactly 100 divisors to the 3rd power of a natural number, so how many divisors does the natural number itself have at least?
一个自然数的3次方恰好有100个约数，那么这个自然数本身最少有多少个约数．
<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<gadget id="calculator">4 * 4</gadget>
<output>16</output>

<result>16</result>