I divisori di 16401990 sono 64, elencati qui di seguito: 1; 2; 3; 5; 6; 10; 11; 15; 22; 23; 30; 33; 46; 55; 66; 69; 110; 115; 138; 165; 230; 253; 330; 345; 506; 690; 759; 1265; 1518; 2161; 2530; 3795; 4322; 6483; 7590; 10805; 12966; 21610; 23771; 32415; 47542; 49703; 64830; 71313; 99406; 118855; 142626; 149109; 237710; 248515; 298218; 356565; 497030; 546733; 713130; 745545; 1093466; 1491090; 1640199; 2733665; 3280398; 5467330; 8200995; 16401990
16401971, 16401972, 16401973, 16401974, 16401975, 16401976, 16401977, 16401978, 16401979, 16401980, 16401981, 16401982, 16401983, 16401984, 16401985, 16401986, 16401987, 16401988, 16401989, 16401991, 16401992, 16401993, 16401994, 16401995, 16401996, 16401997, 16401998, 16401999, 16402000, 16402001, 16402002, 16402003, 16402004, 16402005, 16402006, 16402007, 16402008, 16402009