21718368

素因数分解:

$2^5\times 3^6\times 7^2\times {\mathrm{19}}^1$

素因数の和:61

約数の個数: 252

約数和(自身を含む): 78499260

約数和(自身を除く): 56780892

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 19, 21, 24, 27, 28, 32, 36, 38, 42, 48, 49, 54, 56, 57, 63, 72, 76, 81, 84, 96, 98, 108, 112, 114, 126, 133, 144, 147, 152, 162, 168, 171, 189, 196, 216, 224, 228, 243, 252, 266, 288, 294, 304, 324, 336, 342, 378, 392, 399, 432, 441, 456, 486, 504, 513, 532, 567, 588, 608, 648, 672, 684, 729, 756, 784, 798, 864, 882, 912, 931, 972, 1008, 1026, 1064, 1134, 1176, 1197, 1296, 1323, 1368, 1458, 1512, 1539, 1568, 1596, 1701, 1764, 1824, 1862, 1944, 2016, 2052, 2128, 2268, 2352, 2394, 2592, 2646, 2736, 2793, 2916, 3024, 3078, 3192, 3402, 3528, 3591, 3724, 3888, 3969, 4104, 4256, 4536, 4617, 4704, 4788, 5103, 5292, 5472, 5586, 5832, 6048, 6156, 6384, 6804, 7056, 7182, 7448, 7776, 7938, 8208, 8379, 9072, 9234, 9576, 10206, 10584, 10773, 11172, 11664, 11907, 12312, 12768, 13608, 13851, 14112, 14364, 14896, 15876, 16416, 16758, 18144, 18468, 19152, 20412, 21168, 21546, 22344, 23328, 23814, 24624, 25137, 27216, 27702, 28728, 29792, 31752, 32319, 33516, 35721, 36936, 38304, 40824, 42336, 43092, 44688, 47628, 49248, 50274, 54432, 55404, 57456, 63504, 64638, 67032, 71442, 73872, 75411, 81648, 86184, 89376, 95256, 96957, 100548, 110808, 114912, 127008, 129276, 134064, 142884, 147744, 150822, 163296, 172368, 190512, 193914, 201096, 221616, 226233, 258552, 268128, 285768, 301644, 344736, 381024, 387828, 402192, 443232, 452466, 517104, 571536, 603288, 678699, 775656, 804384, 904932, 1034208, 1143072, 1206576, 1357398, 1551312, 1809864, 2413152, 2714796, 3102624, 3619728, 5429592, 7239456, 10859184, 21718368]

約数ペア:

[(1, 21718368), (2, 10859184), (3, 7239456), (4, 5429592), (6, 3619728), (7, 3102624), (8, 2714796), (9, 2413152), (12, 1809864), (14, 1551312), (16, 1357398), (18, 1206576), (19, 1143072), (21, 1034208), (24, 904932), (27, 804384), (28, 775656), (32, 678699), (36, 603288), (38, 571536), (42, 517104), (48, 452466), (49, 443232), (54, 402192), (56, 387828), (57, 381024), (63, 344736), (72, 301644), (76, 285768), (81, 268128), (84, 258552), (96, 226233), (98, 221616), (108, 201096), (112, 193914), (114, 190512), (126, 172368), (133, 163296), (144, 150822), (147, 147744), (152, 142884), (162, 134064), (168, 129276), (171, 127008), (189, 114912), (196, 110808), (216, 100548), (224, 96957), (228, 95256), (243, 89376), (252, 86184), (266, 81648), (288, 75411), (294, 73872), (304, 71442), (324, 67032), (336, 64638), (342, 63504), (378, 57456), (392, 55404), (399, 54432), (432, 50274), (441, 49248), (456, 47628), (486, 44688), (504, 43092), (513, 42336), (532, 40824), (567, 38304), (588, 36936), (608, 35721), (648, 33516), (672, 32319), (684, 31752), (729, 29792), (756, 28728), (784, 27702), (798, 27216), (864, 25137), (882, 24624), (912, 23814), (931, 23328), (972, 22344), (1008, 21546), (1026, 21168), (1064, 20412), (1134, 19152), (1176, 18468), (1197, 18144), (1296, 16758), (1323, 16416), (1368, 15876), (1458, 14896), (1512, 14364), (1539, 14112), (1568, 13851), (1596, 13608), (1701, 12768), (1764, 12312), (1824, 11907), (1862, 11664), (1944, 11172), (2016, 10773), (2052, 10584), (2128, 10206), (2268, 9576), (2352, 9234), (2394, 9072), (2592, 8379), (2646, 8208), (2736, 7938), (2793, 7776), (2916, 7448), (3024, 7182), (3078, 7056), (3192, 6804), (3402, 6384), (3528, 6156), (3591, 6048), (3724, 5832), (3888, 5586), (3969, 5472), (4104, 5292), (4256, 5103), (4536, 4788), (4617, 4704)]