Table:
text: 2007 Australian motorcycle Grand Prix
MotoGP classification
MotoGP classification
Rider Manufacturer Laps Time_Retired Grid
Casey Stoner Ducati 27 41:12.244 3
Loris Capirossi Ducati 27 +6.763 5
Valentino Rossi Yamaha 27 +10.038 2
Dani Pedrosa Honda 27 +11.663 1
Alex Barros Ducati 27 +19.475 7
Randy de Puniet Kawasaki 27 +27.313 6
John Hopkins Suzuki 27 +29.243 14
Chris Vermeulen Suzuki 27 +34.833 16
Colin Edwards Yamaha 27 +35.073 11
Marco Melandri Honda 27 +36.971 12
Carlos Checa Honda 27 +37.721 13
Anthony West Kawasaki 27 +38.426 10
Shinya Nakano Honda 27 +47.430 8
Sylvain Guintoli Yamaha 27 +54.324 9
Toni Elías Honda 27 +1:10.471 18
Makoto Tamada Yamaha 27 +1:12.904 15

Question: What is the lowest lap number with a time/margin of +38.426 for the 2007 Australian Grand Prix MotoGP classification?

Question: What is the sum of laps with a time/retirement of +19.475 in the 2007 Australian Grand Prix MotoGP classification?