21577248

素因数分解:

$2^5\times 3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{139}}^1$

素因数の和:180

約数の個数: 216

約数和(自身を含む): 78427440

約数和(自身を除く): 56850192

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 16, 18, 21, 22, 24, 28, 32, 33, 36, 42, 44, 48, 49, 56, 63, 66, 72, 77, 84, 88, 96, 98, 99, 112, 126, 132, 139, 144, 147, 154, 168, 176, 196, 198, 224, 231, 252, 264, 278, 288, 294, 308, 336, 352, 392, 396, 417, 441, 462, 504, 528, 539, 556, 588, 616, 672, 693, 784, 792, 834, 882, 924, 973, 1008, 1056, 1078, 1112, 1176, 1232, 1251, 1386, 1529, 1568, 1584, 1617, 1668, 1764, 1848, 1946, 2016, 2156, 2224, 2352, 2464, 2502, 2772, 2919, 3058, 3168, 3234, 3336, 3528, 3696, 3892, 4312, 4448, 4587, 4704, 4851, 5004, 5544, 5838, 6116, 6468, 6672, 6811, 7056, 7392, 7784, 8624, 8757, 9174, 9702, 10008, 10703, 11088, 11676, 12232, 12936, 13344, 13622, 13761, 14112, 15568, 17248, 17514, 18348, 19404, 20016, 20433, 21406, 22176, 23352, 24464, 25872, 27244, 27522, 31136, 32109, 35028, 36696, 38808, 40032, 40866, 42812, 46704, 48928, 51744, 54488, 55044, 61299, 64218, 70056, 73392, 74921, 77616, 81732, 85624, 93408, 96327, 108976, 110088, 122598, 128436, 140112, 146784, 149842, 155232, 163464, 171248, 192654, 217952, 220176, 224763, 245196, 256872, 280224, 299684, 326928, 342496, 385308, 440352, 449526, 490392, 513744, 599368, 653856, 674289, 770616, 899052, 980784, 1027488, 1198736, 1348578, 1541232, 1798104, 1961568, 2397472, 2697156, 3082464, 3596208, 5394312, 7192416, 10788624, 21577248]

約数ペア:

[(1, 21577248), (2, 10788624), (3, 7192416), (4, 5394312), (6, 3596208), (7, 3082464), (8, 2697156), (9, 2397472), (11, 1961568), (12, 1798104), (14, 1541232), (16, 1348578), (18, 1198736), (21, 1027488), (22, 980784), (24, 899052), (28, 770616), (32, 674289), (33, 653856), (36, 599368), (42, 513744), (44, 490392), (48, 449526), (49, 440352), (56, 385308), (63, 342496), (66, 326928), (72, 299684), (77, 280224), (84, 256872), (88, 245196), (96, 224763), (98, 220176), (99, 217952), (112, 192654), (126, 171248), (132, 163464), (139, 155232), (144, 149842), (147, 146784), (154, 140112), (168, 128436), (176, 122598), (196, 110088), (198, 108976), (224, 96327), (231, 93408), (252, 85624), (264, 81732), (278, 77616), (288, 74921), (294, 73392), (308, 70056), (336, 64218), (352, 61299), (392, 55044), (396, 54488), (417, 51744), (441, 48928), (462, 46704), (504, 42812), (528, 40866), (539, 40032), (556, 38808), (588, 36696), (616, 35028), (672, 32109), (693, 31136), (784, 27522), (792, 27244), (834, 25872), (882, 24464), (924, 23352), (973, 22176), (1008, 21406), (1056, 20433), (1078, 20016), (1112, 19404), (1176, 18348), (1232, 17514), (1251, 17248), (1386, 15568), (1529, 14112), (1568, 13761), (1584, 13622), (1617, 13344), (1668, 12936), (1764, 12232), (1848, 11676), (1946, 11088), (2016, 10703), (2156, 10008), (2224, 9702), (2352, 9174), (2464, 8757), (2502, 8624), (2772, 7784), (2919, 7392), (3058, 7056), (3168, 6811), (3234, 6672), (3336, 6468), (3528, 6116), (3696, 5838), (3892, 5544), (4312, 5004), (4448, 4851), (4587, 4704)]