21186072018

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{28961}}^1$

素因数の和:29045

約数の個数: 128

約数和(自身を含む): 53382758400

約数和(自身を除く): 32196686382

約数列:

[1, 2, 3, 6, 9, 18, 19, 23, 27, 31, 38, 46, 54, 57, 62, 69, 93, 114, 138, 171, 186, 207, 279, 342, 414, 437, 513, 558, 589, 621, 713, 837, 874, 1026, 1178, 1242, 1311, 1426, 1674, 1767, 2139, 2622, 3534, 3933, 4278, 5301, 6417, 7866, 10602, 11799, 12834, 13547, 15903, 19251, 23598, 27094, 28961, 31806, 38502, 40641, 57922, 81282, 86883, 121923, 173766, 243846, 260649, 365769, 521298, 550259, 666103, 731538, 781947, 897791, 1100518, 1332206, 1563894, 1650777, 1795582, 1998309, 2693373, 3301554, 3996618, 4952331, 5386746, 5994927, 8080119, 9904662, 11989854, 12655957, 14856993, 16160238, 17058029, 17984781, 20649193, 24240357, 25311914, 29713986, 34116058, 35969562, 37967871, 41298386, 48480714, 51174087, 61947579, 75935742, 102348174, 113903613, 123895158, 153522261, 185842737, 227807226, 307044522, 341710839, 371685474, 392334667, 460566783, 557528211, 683421678, 784669334, 921133566, 1115056422, 1177004001, 2354008002, 3531012003, 7062024006, 10593036009, 21186072018]

約数ペア:

[(1, 21186072018), (2, 10593036009), (3, 7062024006), (6, 3531012003), (9, 2354008002), (18, 1177004001), (19, 1115056422), (23, 921133566), (27, 784669334), (31, 683421678), (38, 557528211), (46, 460566783), (54, 392334667), (57, 371685474), (62, 341710839), (69, 307044522), (93, 227807226), (114, 185842737), (138, 153522261), (171, 123895158), (186, 113903613), (207, 102348174), (279, 75935742), (342, 61947579), (414, 51174087), (437, 48480714), (513, 41298386), (558, 37967871), (589, 35969562), (621, 34116058), (713, 29713986), (837, 25311914), (874, 24240357), (1026, 20649193), (1178, 17984781), (1242, 17058029), (1311, 16160238), (1426, 14856993), (1674, 12655957), (1767, 11989854), (2139, 9904662), (2622, 8080119), (3534, 5994927), (3933, 5386746), (4278, 4952331), (5301, 3996618), (6417, 3301554), (7866, 2693373), (10602, 1998309), (11799, 1795582), (12834, 1650777), (13547, 1563894), (15903, 1332206), (19251, 1100518), (23598, 897791), (27094, 781947), (28961, 731538), (31806, 666103), (38502, 550259), (40641, 521298), (57922, 365769), (81282, 260649), (86883, 243846), (121923, 173766)]