@heir:
d777 = (348) = 348
d777 = (348) = 348d7777 = (1212) = 1212d7! = (5) = 51d5! = (5+3) = 8d777 = (729) = 729d1488! = (191) = 191d191! = (84) = 84d84! = (48) = 48d48! = (40) = 40d40! = (6) = 6d6! = (2) = 2d2! = (1) = 1d1488! = (677) = 677d677! = (598) = 598d598! = (145) = 145d145! = (124) = 124d124! = (45) = 45d45! = (23) = 23d23! = (7) = 7d7! = (2) = 2d2! = (1) = 1d20=4! = ( 20d20=4! = ( 20d20!=4 = (10+18+13+11+3+8+19+16+4+19+18+12+5+9+18+19+4+4+18+15+18+10+1) = 27220d20!=4=4 = ( d20!=4=4 = ( d20!=4 = (19) = 19d20!=4 = (13) = 13d20!=4 = (12) = 12d20!=4 = (11) = 11d20!=4 = (8) = 8d20!=4 = (8) = 8d20!=4 = (2) = 2d20!=4 = (6) = 6d20!=4 = (18) = 18d20!=4 = (17) = 17d20!=4 = (10) = 10d20!=4 = (19) = 19d20!=4 = (17) = 17d20!=4 = (16) = 16