21456288

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{367}}^1$

素因数の和:419

約数の個数: 144

約数和(自身を含む): 72334080

約数和(自身を除く): 50877792

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 29, 32, 36, 42, 48, 56, 58, 63, 72, 84, 87, 96, 112, 116, 126, 144, 168, 174, 203, 224, 232, 252, 261, 288, 336, 348, 367, 406, 464, 504, 522, 609, 672, 696, 734, 812, 928, 1008, 1044, 1101, 1218, 1392, 1468, 1624, 1827, 2016, 2088, 2202, 2436, 2569, 2784, 2936, 3248, 3303, 3654, 4176, 4404, 4872, 5138, 5872, 6496, 6606, 7308, 7707, 8352, 8808, 9744, 10276, 10643, 11744, 13212, 14616, 15414, 17616, 19488, 20552, 21286, 23121, 26424, 29232, 30828, 31929, 35232, 41104, 42572, 46242, 52848, 58464, 61656, 63858, 74501, 82208, 85144, 92484, 95787, 105696, 123312, 127716, 149002, 170288, 184968, 191574, 223503, 246624, 255432, 298004, 340576, 369936, 383148, 447006, 510864, 596008, 670509, 739872, 766296, 894012, 1021728, 1192016, 1341018, 1532592, 1788024, 2384032, 2682036, 3065184, 3576048, 5364072, 7152096, 10728144, 21456288]

約数ペア:

[(1, 21456288), (2, 10728144), (3, 7152096), (4, 5364072), (6, 3576048), (7, 3065184), (8, 2682036), (9, 2384032), (12, 1788024), (14, 1532592), (16, 1341018), (18, 1192016), (21, 1021728), (24, 894012), (28, 766296), (29, 739872), (32, 670509), (36, 596008), (42, 510864), (48, 447006), (56, 383148), (58, 369936), (63, 340576), (72, 298004), (84, 255432), (87, 246624), (96, 223503), (112, 191574), (116, 184968), (126, 170288), (144, 149002), (168, 127716), (174, 123312), (203, 105696), (224, 95787), (232, 92484), (252, 85144), (261, 82208), (288, 74501), (336, 63858), (348, 61656), (367, 58464), (406, 52848), (464, 46242), (504, 42572), (522, 41104), (609, 35232), (672, 31929), (696, 30828), (734, 29232), (812, 26424), (928, 23121), (1008, 21286), (1044, 20552), (1101, 19488), (1218, 17616), (1392, 15414), (1468, 14616), (1624, 13212), (1827, 11744), (2016, 10643), (2088, 10276), (2202, 9744), (2436, 8808), (2569, 8352), (2784, 7707), (2936, 7308), (3248, 6606), (3303, 6496), (3654, 5872), (4176, 5138), (4404, 4872)]