Divide 19 into the sum of several natural numbers to make the product of these numbers the largest, then what is the largest product.
将19分拆成若干自然数的和，使这些数的乘积最大，那么最大乘积是多少．
<gadget id="calculator">3 * 3 * 3 * 3 * 3 * 2 * 2</gadget>
<output>972</output>

<result>972</result>