Divide a cube with a side length of 3 cm into several small cubes. The side lengths of these small cubes must be whole centimeters. If the volumes of these small cubes are not required to be equal, how many small cubes can be divided at least?
把一个棱长为3厘米的正方体分割成若干个小正方体，这些小正方体的棱长必须是整厘米数，如果这些小正方体的体积不要求都相等，那么，最少可分得多少个小正方体？
<gadget id="calculator">3 ** 3</gadget>
<output>27</output>

<gadget id="calculator">2 ** 3</gadget>
<output>8</output>

<gadget id="calculator">1 ** 3</gadget>
<output>1</output>

<gadget id="calculator">8 / 1</gadget>
<output>8</output>

<gadget id="calculator">27 - 8</gadget>
<output>19</output>

<gadget id="calculator">1 + 19</gadget>
<output>20</output>

<result>20</result>