There is a cuboid box, the volume is 1620 cubic centimeters, the height is 3 cm more than the width, and 3 cm less than the length, and the length, width and height are all integers. To paste a layer of decorative paper on this cuboid box (not counting the joints), at least how many square centimeters of decorative paper do you need to buy?
有一个长方体的盒子，体积是1620立方厘米，高比宽多3厘米，比长少3厘米，且长宽高均为整数．要给这个长方体盒子糊一层装饰纸(接头处不计)，至少需要买多少平方厘米的装饰纸？
<gadget id="calculator">15 * 9</gadget>
<output>135</output>

<gadget id="calculator">9 * 12</gadget>
<output>108</output>

<gadget id="calculator">12 * 15</gadget>
<output>180</output>

<gadget id="calculator">135 + 108 + 180</gadget>
<output>423</output>

<gadget id="calculator">423 * 2</gadget>
<output>846</output>

<result>846</result>