PHOENIX — The only numbers that really seemed to matter in the first half of Game 3 tonight were these: 20 and three. As in, the Phoenix Suns shot 20 free throws, making 18, and the Lakers shot three, making none. The disparity at the free throw line overshadowed a lot of other things, including Kobe Bryant’s 19 points, five rebounds and five assists. The Lakers are in serious foul trouble going into the second half. Andrew Bynum and Lamar Odom each have three and Derek Fisher and Pau Gasol have two apiece.