They are: 47+2 = 49
1, 2, 7, 14, 49, 98: 1 x 98, 2 x 49, 7 x 14.
49*2
1 x 98, 2 x 49, 7 x 14, 14 x 7, 49 x 2, 98 x 1
They are 1*49=49 and 7*7=49
There are 48/2 + 1 = 25 odd numbers in 1 to 49, inclusive.
1 x 98, 2 x 49, 7 x 14
1 x 147, 3 x 49, 7 x 21
1 + 3 + 5 + ... + 49 = ((49 + 1)/2)2 = 625
1 x 49, 7 x 7
24 and 25, which are (49-1)/2 and (49+1)/2
1, 2, 3, 6, 9, 18 1, 7, 49