If the length, width, and height of a cuboid are all integer centimeters, and its volume is 1998 cubic centimeters, what is the smallest possible value of the sum of its length, width, and height in centimeters?
一个长方体的长、宽、高都是整数厘米，它的体积是1998立方厘米，那么它的长、宽、高的和的最小可能值是多少厘米．
<gadget id="calculator">2 * 3</gadget>
<output>6</output>

<gadget id="calculator">3 * 3</gadget>
<output>9</output>

<gadget id="calculator">37 + 6 + 9</gadget>
<output>52</output>

<result>52</result>