20913984

素因数分解:

$2^6\times 3^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1$

素因数の和:67

約数の個数: 336

約数和(自身を含む): 81076800

約数和(自身を除く): 60162816

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 19, 21, 24, 26, 27, 28, 32, 36, 38, 39, 42, 48, 49, 52, 54, 56, 57, 63, 64, 72, 76, 78, 84, 91, 96, 98, 104, 108, 112, 114, 117, 126, 133, 144, 147, 152, 156, 168, 171, 182, 189, 192, 196, 208, 216, 224, 228, 234, 247, 252, 266, 273, 288, 294, 304, 312, 336, 342, 351, 364, 378, 392, 399, 416, 432, 441, 448, 456, 468, 494, 504, 513, 532, 546, 576, 588, 608, 624, 637, 672, 684, 702, 728, 741, 756, 784, 798, 819, 832, 864, 882, 912, 931, 936, 988, 1008, 1026, 1064, 1092, 1176, 1197, 1216, 1248, 1274, 1323, 1344, 1368, 1404, 1456, 1482, 1512, 1568, 1596, 1638, 1728, 1729, 1764, 1824, 1862, 1872, 1911, 1976, 2016, 2052, 2128, 2184, 2223, 2352, 2394, 2457, 2496, 2548, 2646, 2736, 2793, 2808, 2912, 2964, 3024, 3136, 3192, 3276, 3458, 3528, 3591, 3648, 3724, 3744, 3822, 3952, 4032, 4104, 4256, 4368, 4446, 4704, 4788, 4914, 5096, 5187, 5292, 5472, 5586, 5616, 5733, 5824, 5928, 6048, 6384, 6552, 6669, 6916, 7056, 7182, 7448, 7488, 7644, 7904, 8208, 8379, 8512, 8736, 8892, 9408, 9576, 9828, 10192, 10374, 10584, 10944, 11172, 11232, 11466, 11856, 12096, 12103, 12768, 13104, 13338, 13832, 14112, 14364, 14896, 15288, 15561, 15808, 16416, 16758, 17199, 17472, 17784, 19152, 19656, 20384, 20748, 21168, 22344, 22464, 22932, 23712, 24206, 25137, 25536, 26208, 26676, 27664, 28224, 28728, 29792, 30576, 31122, 32832, 33516, 34398, 35568, 36309, 38304, 39312, 40768, 41496, 42336, 44688, 45864, 46683, 47424, 48412, 50274, 52416, 53352, 55328, 57456, 59584, 61152, 62244, 67032, 68796, 71136, 72618, 76608, 78624, 82992, 84672, 89376, 91728, 93366, 96824, 100548, 106704, 108927, 110656, 114912, 122304, 124488, 134064, 137592, 142272, 145236, 157248, 165984, 178752, 183456, 186732, 193648, 201096, 213408, 217854, 229824, 248976, 268128, 275184, 290472, 326781, 331968, 366912, 373464, 387296, 402192, 426816, 435708, 497952, 536256, 550368, 580944, 653562, 746928, 774592, 804384, 871416, 995904, 1100736, 1161888, 1307124, 1493856, 1608768, 1742832, 2323776, 2614248, 2987712, 3485664, 5228496, 6971328, 10456992, 20913984]

約数ペア:

[(1, 20913984), (2, 10456992), (3, 6971328), (4, 5228496), (6, 3485664), (7, 2987712), (8, 2614248), (9, 2323776), (12, 1742832), (13, 1608768), (14, 1493856), (16, 1307124), (18, 1161888), (19, 1100736), (21, 995904), (24, 871416), (26, 804384), (27, 774592), (28, 746928), (32, 653562), (36, 580944), (38, 550368), (39, 536256), (42, 497952), (48, 435708), (49, 426816), (52, 402192), (54, 387296), (56, 373464), (57, 366912), (63, 331968), (64, 326781), (72, 290472), (76, 275184), (78, 268128), (84, 248976), (91, 229824), (96, 217854), (98, 213408), (104, 201096), (108, 193648), (112, 186732), (114, 183456), (117, 178752), (126, 165984), (133, 157248), (144, 145236), (147, 142272), (152, 137592), (156, 134064), (168, 124488), (171, 122304), (182, 114912), (189, 110656), (192, 108927), (196, 106704), (208, 100548), (216, 96824), (224, 93366), (228, 91728), (234, 89376), (247, 84672), (252, 82992), (266, 78624), (273, 76608), (288, 72618), (294, 71136), (304, 68796), (312, 67032), (336, 62244), (342, 61152), (351, 59584), (364, 57456), (378, 55328), (392, 53352), (399, 52416), (416, 50274), (432, 48412), (441, 47424), (448, 46683), (456, 45864), (468, 44688), (494, 42336), (504, 41496), (513, 40768), (532, 39312), (546, 38304), (576, 36309), (588, 35568), (608, 34398), (624, 33516), (637, 32832), (672, 31122), (684, 30576), (702, 29792), (728, 28728), (741, 28224), (756, 27664), (784, 26676), (798, 26208), (819, 25536), (832, 25137), (864, 24206), (882, 23712), (912, 22932), (931, 22464), (936, 22344), (988, 21168), (1008, 20748), (1026, 20384), (1064, 19656), (1092, 19152), (1176, 17784), (1197, 17472), (1216, 17199), (1248, 16758), (1274, 16416), (1323, 15808), (1344, 15561), (1368, 15288), (1404, 14896), (1456, 14364), (1482, 14112), (1512, 13832), (1568, 13338), (1596, 13104), (1638, 12768), (1728, 12103), (1729, 12096), (1764, 11856), (1824, 11466), (1862, 11232), (1872, 11172), (1911, 10944), (1976, 10584), (2016, 10374), (2052, 10192), (2128, 9828), (2184, 9576), (2223, 9408), (2352, 8892), (2394, 8736), (2457, 8512), (2496, 8379), (2548, 8208), (2646, 7904), (2736, 7644), (2793, 7488), (2808, 7448), (2912, 7182), (2964, 7056), (3024, 6916), (3136, 6669), (3192, 6552), (3276, 6384), (3458, 6048), (3528, 5928), (3591, 5824), (3648, 5733), (3724, 5616), (3744, 5586), (3822, 5472), (3952, 5292), (4032, 5187), (4104, 5096), (4256, 4914), (4368, 4788), (4446, 4704)]