Possible Clues:

• *They're used for counting quantities
• One or two perhaps I'd written about in sexy book
• One or two perhaps count in conclave
• Figures counted at a papal conclave presumably
• Figures in the church from The Bible
• They denote a quantity but not the order
• A quantity of figures vote for papa perhaps
• 16, 101 and 947
• Two and three, for example, are Vatican anaesthetists, perhaps
• Items on one team's shirts?