The workers processed three batches of parts, and in each batch of parts, except that Mr. Wang processed several more parts than other workers, the other workers processed the same number. It is known that they processed a total of 2,100 pieces in the first batch, of which Master Wang processed 7 more pieces than each worker; in the second batch, a total of 1,800 pieces were processed, of which Master Wang processed 6 more pieces than each worker; in the third batch, 1,600 pieces were processed, Among them, Master Wang processed 13 more than everyone. How many workers are there at most?
工人加工了三批零件，每加工一批零件，除了王师傅比其他工人多加工若干个外，其他工人加工的都同样多．已知他们第一批共加工2100个，其中王师傅比每个工人多加工7个，第二批共加工1800个，其中王师傅比每个工人多加工6个；第三批加工1600个，其中王师傅比每个人多加工13个．这批工人最多有多少人．
<result>23</result>