21201264

素因数分解:

$2^4\times 3^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1$

素因数の和:90

約数の個数: 240

約数和(自身を含む): 75828480

約数和(自身を除く): 54627216

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 19, 21, 24, 27, 28, 36, 38, 41, 42, 48, 54, 56, 57, 63, 72, 76, 81, 82, 84, 108, 112, 114, 123, 126, 133, 144, 152, 162, 164, 168, 171, 189, 216, 228, 243, 246, 252, 266, 287, 304, 324, 328, 336, 342, 369, 378, 399, 432, 456, 486, 492, 504, 513, 532, 567, 574, 648, 656, 684, 738, 756, 779, 798, 861, 912, 972, 984, 1008, 1026, 1064, 1107, 1134, 1148, 1197, 1296, 1368, 1476, 1512, 1539, 1558, 1596, 1701, 1722, 1944, 1968, 2052, 2128, 2214, 2268, 2296, 2337, 2394, 2583, 2736, 2952, 3024, 3078, 3116, 3192, 3321, 3402, 3444, 3591, 3888, 4104, 4428, 4536, 4592, 4617, 4674, 4788, 5166, 5453, 5904, 6156, 6232, 6384, 6642, 6804, 6888, 7011, 7182, 7749, 8208, 8856, 9072, 9234, 9348, 9576, 9963, 10332, 10773, 10906, 12312, 12464, 13284, 13608, 13776, 14022, 14364, 15498, 16359, 17712, 18468, 18696, 19152, 19926, 20664, 21033, 21546, 21812, 23247, 24624, 26568, 27216, 28044, 28728, 30996, 32319, 32718, 36936, 37392, 39852, 41328, 42066, 43092, 43624, 46494, 49077, 53136, 56088, 57456, 61992, 63099, 64638, 65436, 69741, 73872, 79704, 84132, 86184, 87248, 92988, 98154, 112176, 123984, 126198, 129276, 130872, 139482, 147231, 159408, 168264, 172368, 185976, 189297, 196308, 252396, 258552, 261744, 278964, 294462, 336528, 371952, 378594, 392616, 441693, 504792, 517104, 557928, 588924, 757188, 785232, 883386, 1009584, 1115856, 1177848, 1325079, 1514376, 1766772, 2355696, 2650158, 3028752, 3533544, 5300316, 7067088, 10600632, 21201264]

約数ペア:

[(1, 21201264), (2, 10600632), (3, 7067088), (4, 5300316), (6, 3533544), (7, 3028752), (8, 2650158), (9, 2355696), (12, 1766772), (14, 1514376), (16, 1325079), (18, 1177848), (19, 1115856), (21, 1009584), (24, 883386), (27, 785232), (28, 757188), (36, 588924), (38, 557928), (41, 517104), (42, 504792), (48, 441693), (54, 392616), (56, 378594), (57, 371952), (63, 336528), (72, 294462), (76, 278964), (81, 261744), (82, 258552), (84, 252396), (108, 196308), (112, 189297), (114, 185976), (123, 172368), (126, 168264), (133, 159408), (144, 147231), (152, 139482), (162, 130872), (164, 129276), (168, 126198), (171, 123984), (189, 112176), (216, 98154), (228, 92988), (243, 87248), (246, 86184), (252, 84132), (266, 79704), (287, 73872), (304, 69741), (324, 65436), (328, 64638), (336, 63099), (342, 61992), (369, 57456), (378, 56088), (399, 53136), (432, 49077), (456, 46494), (486, 43624), (492, 43092), (504, 42066), (513, 41328), (532, 39852), (567, 37392), (574, 36936), (648, 32718), (656, 32319), (684, 30996), (738, 28728), (756, 28044), (779, 27216), (798, 26568), (861, 24624), (912, 23247), (972, 21812), (984, 21546), (1008, 21033), (1026, 20664), (1064, 19926), (1107, 19152), (1134, 18696), (1148, 18468), (1197, 17712), (1296, 16359), (1368, 15498), (1476, 14364), (1512, 14022), (1539, 13776), (1558, 13608), (1596, 13284), (1701, 12464), (1722, 12312), (1944, 10906), (1968, 10773), (2052, 10332), (2128, 9963), (2214, 9576), (2268, 9348), (2296, 9234), (2337, 9072), (2394, 8856), (2583, 8208), (2736, 7749), (2952, 7182), (3024, 7011), (3078, 6888), (3116, 6804), (3192, 6642), (3321, 6384), (3402, 6232), (3444, 6156), (3591, 5904), (3888, 5453), (4104, 5166), (4428, 4788), (4536, 4674), (4592, 4617)]