I divisori di 20001988 sono 12, elencati qui di seguito: 1; 2; 4; 53; 106; 212; 94349; 188698; 377396; 5000497; 10000994; 20001988
20001969, 20001970, 20001971, 20001972, 20001973, 20001974, 20001975, 20001976, 20001977, 20001978, 20001979, 20001980, 20001981, 20001982, 20001983, 20001984, 20001985, 20001986, 20001987, 20001989, 20001990, 20001991, 20001992, 20001993, 20001994, 20001995, 20001996, 20001997, 20001998, 20001999, 20002000, 20002001, 20002002, 20002003, 20002004, 20002005, 20002006, 20002007