11. The floor plan of a castle is designed in this way: consider a circumference of 2019 meters with a regular polygon of 2019 vertices inscribed in it. Once the vertices of the polygon are numbered from 1 to 2019 in a clockwise direction, draw circles of length $2019 m$ centered at each point numbered with a perfect square. The floor plan of the castle consists of the union of all the circles drawn. How many meters does the perimeter of the castle measure?
(A) 2692
(B) 4038
(C) 4627
(D) $\frac{29370}{2 \pi}$
(E) $2019 \pi$