public void Problem21_Can_SolveIt()
{
// Arrange
var expected = 31626;
var target = new Problem21();
// Act
var result = target.SolveIt();
// Assert
Assert.AreEqual(expected, result);
}
public void Problem21_Can_FindSumOfProperDivisors()
{
// Arrange
var number = 284;
var expected = 220;
var target = new Problem21();
// Act
var result = target.FindSumOfProperDivisors(number);
// Assert
Assert.AreEqual(expected, result);
}