The answer is 588. You know that you can use a calculator.
It is 1x588, 2x294, 3x196, 4x147, 6x98, 7x84, 12x49, 14x42, 21x28.I hope this is what you are looking for.
You need to know the average depth of the pool. the depth of the deep end plus the depth of the shallow end divided by 2 will give an average. The formula for estimating the gallons of water is in a pool is; length times width times average depth times the multiplier 7.5 for a rectangle pool; 6.7 for a oval or free form pool. with this formula a rectangle pool 14X42 6 feet deep end and 3 feet shallow end will be approx. 19,845 gallons
Cannot be answered with only these measurements. You need to specify what shape the pool is. Also, for a rectangular pool, the length, width and depth are needed. For a round pool, the diameter and depth are needed.