19989396

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{137}}^1\times {\mathrm{193}}^1$

素因数の和:350

約数の個数: 96

約数和(自身を含む): 59969280

約数和(自身を除く): 39979884

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 137, 189, 193, 252, 274, 378, 386, 411, 548, 579, 756, 772, 822, 959, 1158, 1233, 1351, 1644, 1737, 1918, 2316, 2466, 2702, 2877, 3474, 3699, 3836, 4053, 4932, 5211, 5404, 5754, 6948, 7398, 8106, 8631, 10422, 11508, 12159, 14796, 16212, 17262, 20844, 24318, 25893, 26441, 34524, 36477, 48636, 51786, 52882, 72954, 79323, 103572, 105764, 145908, 158646, 185087, 237969, 317292, 370174, 475938, 555261, 713907, 740348, 951876, 1110522, 1427814, 1665783, 2221044, 2855628, 3331566, 4997349, 6663132, 9994698, 19989396]

約数ペア:

[(1, 19989396), (2, 9994698), (3, 6663132), (4, 4997349), (6, 3331566), (7, 2855628), (9, 2221044), (12, 1665783), (14, 1427814), (18, 1110522), (21, 951876), (27, 740348), (28, 713907), (36, 555261), (42, 475938), (54, 370174), (63, 317292), (84, 237969), (108, 185087), (126, 158646), (137, 145908), (189, 105764), (193, 103572), (252, 79323), (274, 72954), (378, 52882), (386, 51786), (411, 48636), (548, 36477), (579, 34524), (756, 26441), (772, 25893), (822, 24318), (959, 20844), (1158, 17262), (1233, 16212), (1351, 14796), (1644, 12159), (1737, 11508), (1918, 10422), (2316, 8631), (2466, 8106), (2702, 7398), (2877, 6948), (3474, 5754), (3699, 5404), (3836, 5211), (4053, 4932)]