The factors of the number 8,713,980 are: 1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 54, 55, 60, 66, 81, 90, 99, 108, 110, 132, 135, 162, 163, 165, 180, 198, 220, 243, 270, 297, 324, 326, 330, 396, 405, 486, 489, 495, 540, 594, 652, 660, 810, 815, 891, 972, 978, 990, 1188, 1215, 1467, 1485, 1620, 1630, 1782, 1793, 1956, 1980, 2430, 2445, 2673, 2934, 2970, 3260, 3564, 3586, 4401, 4455, 4860, 4890, 5346, 5379, 5868, 5940, 7172, 7335, 8802, 8910, 8965, 9780, 10692, 10758, 13203, 13365, 14670, 16137, 17604, 17820, 17930, 21516, 22005, 26406, 26730, 26895, 29340, 32274, 35860, 39609, 44010, 48411, 52812, 53460, 53790, 64548, 66015, 79218, 80685, 88020, 96822, 107580, 132030, 145233, 158436, 161370, 193644, 198045, 242055, 264060, 290466, 322740, 396090, 435699, 484110, 580932, 726165, 792180, 871398, 968220, 1452330, 1742796, 2178495, 2904660, 4356990, 8713980.
If you add them up, you will get the total of 8,714,001. Now subtract 8,713,980 to get 21,372,804