21477168

素因数分解:

$2^4\times 3^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:219

約数の個数: 120

約数和(自身を含む): 64318800

約数和(自身を除く): 42841632

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 29, 36, 37, 48, 58, 72, 74, 87, 111, 116, 139, 144, 148, 174, 222, 232, 261, 278, 296, 333, 348, 417, 444, 464, 522, 556, 592, 666, 696, 834, 888, 1044, 1073, 1112, 1251, 1332, 1392, 1668, 1776, 2088, 2146, 2224, 2502, 2664, 3219, 3336, 4031, 4176, 4292, 5004, 5143, 5328, 6438, 6672, 8062, 8584, 9657, 10008, 10286, 12093, 12876, 15429, 16124, 17168, 19314, 20016, 20572, 24186, 25752, 30858, 32248, 36279, 38628, 41144, 46287, 48372, 51504, 61716, 64496, 72558, 77256, 82288, 92574, 96744, 123432, 145116, 149147, 154512, 185148, 193488, 246864, 290232, 298294, 370296, 447441, 580464, 596588, 740592, 894882, 1193176, 1342323, 1789764, 2386352, 2684646, 3579528, 5369292, 7159056, 10738584, 21477168]

約数ペア:

[(1, 21477168), (2, 10738584), (3, 7159056), (4, 5369292), (6, 3579528), (8, 2684646), (9, 2386352), (12, 1789764), (16, 1342323), (18, 1193176), (24, 894882), (29, 740592), (36, 596588), (37, 580464), (48, 447441), (58, 370296), (72, 298294), (74, 290232), (87, 246864), (111, 193488), (116, 185148), (139, 154512), (144, 149147), (148, 145116), (174, 123432), (222, 96744), (232, 92574), (261, 82288), (278, 77256), (296, 72558), (333, 64496), (348, 61716), (417, 51504), (444, 48372), (464, 46287), (522, 41144), (556, 38628), (592, 36279), (666, 32248), (696, 30858), (834, 25752), (888, 24186), (1044, 20572), (1073, 20016), (1112, 19314), (1251, 17168), (1332, 16124), (1392, 15429), (1668, 12876), (1776, 12093), (2088, 10286), (2146, 10008), (2224, 9657), (2502, 8584), (2664, 8062), (3219, 6672), (3336, 6438), (4031, 5328), (4176, 5143), (4292, 5004)]