M{2} - 2,4,6,8,10…, M{324} - 3, M{49} - 7, M{4} - 4,8,12,16,20…, D{2} - 1,2, D{3} - 1,3, D{20} - 1, 2, 4, 5, 10, 20, D{9} - 1,3,9, D{19} - 1, 19, D{12} - 1, 2, 3, 4, 6, 12,

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