public void Verify_That_The_Sum_Of_All_Abundent_Number_That_Are_Not_The_Sum_Of_Abundent_Numbers_is_4179871()
        {
            var problem = new Problem_023();
            var result = problem.CalculateAbundentNumberSum();

            Assert.That(result, Is.EqualTo(4179871));
        }
        public void Verify_That_12_Is_An_Abundent_Number()
        {
            var problem = new Problem_023();
            var result = problem.IsAbundent(12);

            Assert.That(result, Is.True);
        }