Răspuns:
6, 8 , 10 , 14 , 15 , 21 , 22 ,26 , 27 , 33, 34
D₆propoprii=2,3=2·3=6
D₈proprii=2,4=2·4=8
D₁₀proprii=2,5=2·5=10
S=6+8+10+14+15+21+22+26+27+33+34
S=216
216=2³·3³=(2·3)³=6³ → cub perfect
