The factors of the number 398,598,606 are: 1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 38, 42, 57, 63, 114, 126, 133, 167, 171, 266, 334, 342, 399, 501, 798, 997, 1002, 1169, 1197, 1503, 1994, 2338, 2394, 2991, 3006, 3173, 3507, 5982, 6346, 6979, 7014, 8973, 9519, 10521, 13958, 17946, 18943, 19038, 20937, 21042, 22211, 28557, 37886, 41874, 44422, 56829, 57114, 62811, 66633, 113658, 125622, 132601, 133266, 166499, 170487, 199899, 265202, 332998, 340974, 397803, 399798, 499497, 795606, 998994, 1165493, 1193409, 1498491, 2330986, 2386818, 2996982, 3163481, 3496479, 6326962, 6992958, 9490443, 10489437, 18980886, 20978874, 22144367, 28471329, 44288734, 56942658, 66433101, 132866202, 199299303, 398598606.
If you add them up, you will get the total of 1,046,223,360.