the inclination of the axis and the numbers of moons affect the amount of lands. I have a annotation saying about the inclination , 1~10° - 1 land. 10~30° - 2 lands, 30~50° - 3 lands. After 50° the axis get some kind of colapse giving in some time 3 lands and in other period 1 land. More moons will make the water cover some lands all the time or in certain time of the year, and with more moon s you will get a tons of isolated islands. Like saturn getting the water in atmosphere coz of moons

Resolvido um mistério antigo: o vapor d'água de Saturno provém de uma de suas luas - Terra Brasil