If you plan to stay in Argentina for up to 90 days, you can apply for visa at any Argentine Embassy or Consulate abroad.
If you plan to stay in Argentina longer than 90 days, you can only apply for visa at the Argentine Embassy or Consulate that has jurisdiction over your place of residence.
This means that only residents in Sweden can apply for visa at the Argentine Embassy in Sweden when the intended length of stay in Argentina is longer than 90 days.
To apply for visa at the Argentine Embassy in Sweden, follow these instructions.