I divisori di 9990999 sono 32, elencati qui di seguito: 1; 3; 9; 27; 37; 73; 111; 137; 219; 333; 411; 657; 999; 1233; 1971; 2701; 3699; 5069; 8103; 10001; 15207; 24309; 30003; 45621; 72927; 90009; 136863; 270027; 370037; 1110111; 3330333; 9990999
9990980, 9990981, 9990982, 9990983, 9990984, 9990985, 9990986, 9990987, 9990988, 9990989, 9990990, 9990991, 9990992, 9990993, 9990994, 9990995, 9990996, 9990997, 9990998, 9991000, 9991001, 9991002, 9991003, 9991004, 9991005, 9991006, 9991007, 9991008, 9991009, 9991010, 9991011, 9991012, 9991013, 9991014, 9991015, 9991016, 9991017, 9991018