21986640

素因数分解:

$2^4\times 3^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1$

素因数の和:73

約数の個数: 280

約数和(自身を含む): 85385160

約数和(自身を除く): 63398520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 29, 30, 36, 39, 40, 45, 48, 52, 54, 58, 60, 65, 72, 78, 80, 81, 87, 90, 104, 108, 116, 117, 120, 130, 135, 144, 145, 156, 162, 174, 180, 195, 208, 216, 232, 234, 240, 243, 260, 261, 270, 290, 312, 324, 348, 351, 360, 377, 390, 405, 432, 435, 464, 468, 486, 520, 522, 540, 580, 585, 624, 648, 696, 702, 720, 729, 754, 780, 783, 810, 870, 936, 972, 1040, 1044, 1053, 1080, 1131, 1160, 1170, 1215, 1296, 1305, 1392, 1404, 1458, 1508, 1560, 1566, 1620, 1740, 1755, 1872, 1885, 1944, 2088, 2106, 2160, 2262, 2320, 2340, 2349, 2430, 2610, 2808, 2916, 3016, 3120, 3132, 3159, 3240, 3393, 3480, 3510, 3645, 3770, 3888, 3915, 4176, 4212, 4524, 4680, 4698, 4860, 5220, 5265, 5616, 5655, 5832, 6032, 6264, 6318, 6480, 6786, 6960, 7020, 7047, 7290, 7540, 7830, 8424, 9048, 9360, 9396, 9477, 9720, 10179, 10440, 10530, 11310, 11664, 11745, 12528, 12636, 13572, 14040, 14094, 14580, 15080, 15660, 15795, 16848, 16965, 18096, 18792, 18954, 19440, 20358, 20880, 21060, 21141, 22620, 23490, 25272, 27144, 28080, 28188, 29160, 30160, 30537, 31320, 31590, 33930, 35235, 37584, 37908, 40716, 42120, 42282, 45240, 46980, 47385, 50544, 50895, 54288, 56376, 58320, 61074, 62640, 63180, 67860, 70470, 75816, 81432, 84240, 84564, 90480, 91611, 93960, 94770, 101790, 105705, 112752, 122148, 126360, 135720, 140940, 151632, 152685, 162864, 169128, 183222, 187920, 189540, 203580, 211410, 244296, 252720, 271440, 274833, 281880, 305370, 338256, 366444, 379080, 407160, 422820, 458055, 488592, 549666, 563760, 610740, 732888, 758160, 814320, 845640, 916110, 1099332, 1221480, 1374165, 1465776, 1691280, 1832220, 2198664, 2442960, 2748330, 3664440, 4397328, 5496660, 7328880, 10993320, 21986640]

約数ペア:

[(1, 21986640), (2, 10993320), (3, 7328880), (4, 5496660), (5, 4397328), (6, 3664440), (8, 2748330), (9, 2442960), (10, 2198664), (12, 1832220), (13, 1691280), (15, 1465776), (16, 1374165), (18, 1221480), (20, 1099332), (24, 916110), (26, 845640), (27, 814320), (29, 758160), (30, 732888), (36, 610740), (39, 563760), (40, 549666), (45, 488592), (48, 458055), (52, 422820), (54, 407160), (58, 379080), (60, 366444), (65, 338256), (72, 305370), (78, 281880), (80, 274833), (81, 271440), (87, 252720), (90, 244296), (104, 211410), (108, 203580), (116, 189540), (117, 187920), (120, 183222), (130, 169128), (135, 162864), (144, 152685), (145, 151632), (156, 140940), (162, 135720), (174, 126360), (180, 122148), (195, 112752), (208, 105705), (216, 101790), (232, 94770), (234, 93960), (240, 91611), (243, 90480), (260, 84564), (261, 84240), (270, 81432), (290, 75816), (312, 70470), (324, 67860), (348, 63180), (351, 62640), (360, 61074), (377, 58320), (390, 56376), (405, 54288), (432, 50895), (435, 50544), (464, 47385), (468, 46980), (486, 45240), (520, 42282), (522, 42120), (540, 40716), (580, 37908), (585, 37584), (624, 35235), (648, 33930), (696, 31590), (702, 31320), (720, 30537), (729, 30160), (754, 29160), (780, 28188), (783, 28080), (810, 27144), (870, 25272), (936, 23490), (972, 22620), (1040, 21141), (1044, 21060), (1053, 20880), (1080, 20358), (1131, 19440), (1160, 18954), (1170, 18792), (1215, 18096), (1296, 16965), (1305, 16848), (1392, 15795), (1404, 15660), (1458, 15080), (1508, 14580), (1560, 14094), (1566, 14040), (1620, 13572), (1740, 12636), (1755, 12528), (1872, 11745), (1885, 11664), (1944, 11310), (2088, 10530), (2106, 10440), (2160, 10179), (2262, 9720), (2320, 9477), (2340, 9396), (2349, 9360), (2430, 9048), (2610, 8424), (2808, 7830), (2916, 7540), (3016, 7290), (3120, 7047), (3132, 7020), (3159, 6960), (3240, 6786), (3393, 6480), (3480, 6318), (3510, 6264), (3645, 6032), (3770, 5832), (3888, 5655), (3915, 5616), (4176, 5265), (4212, 5220), (4524, 4860), (4680, 4698)]