It is known that the product of two natural numbers is 2016, and the least common multiple of these two numbers is 168. Find the greatest common divisor of these two numbers.
已知两个自然数的乘积是2016，这两个数的最小公倍数是168，求这两个数的最大公约数．
<gadget id="calculator">2_016 / 168</gadget>
<output>12</output>

<result>12</result>