How is the inheritance distributed among the deceased's heirs, who are: a mother, two full sisters, five half-sisters through the father, two half-sisters through the mother, two half-brothers through the father, and a half-brother through the mother?

If the heirs are limited to those mentioned, the inheritance is divided as follows: The mother receives one-sixth due to the presence of siblings. The two full sisters receive two-thirds due to their plurality. The maternal siblings share one-third because the deceased has no ascendants or descendants. The paternal siblings receive nothing because they are 'asabah (residuaries) and nothing remains for them. The original share is out of six, it increases to seven, and then is rectified to twenty-one.