21071232

素因数分解:

$2^7\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1$

素因数の和:110

約数の個数: 256

約数和(自身を含む): 77683200

約数和(自身を除く): 56611968

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 27, 28, 32, 36, 39, 42, 48, 52, 54, 56, 63, 64, 67, 72, 78, 84, 91, 96, 104, 108, 112, 117, 126, 128, 134, 144, 156, 168, 182, 189, 192, 201, 208, 216, 224, 234, 252, 268, 273, 288, 312, 336, 351, 364, 378, 384, 402, 416, 432, 448, 468, 469, 504, 536, 546, 576, 603, 624, 672, 702, 728, 756, 804, 819, 832, 864, 871, 896, 936, 938, 1008, 1072, 1092, 1152, 1206, 1248, 1344, 1404, 1407, 1456, 1512, 1608, 1638, 1664, 1728, 1742, 1809, 1872, 1876, 2016, 2144, 2184, 2412, 2457, 2496, 2613, 2688, 2808, 2814, 2912, 3024, 3216, 3276, 3456, 3484, 3618, 3744, 3752, 4032, 4221, 4288, 4368, 4824, 4914, 4992, 5226, 5616, 5628, 5824, 6048, 6097, 6432, 6552, 6968, 7236, 7488, 7504, 7839, 8064, 8442, 8576, 8736, 9648, 9828, 10452, 11232, 11256, 11648, 12096, 12194, 12663, 12864, 13104, 13936, 14472, 14976, 15008, 15678, 16884, 17472, 18291, 19296, 19656, 20904, 22464, 22512, 23517, 24192, 24388, 25326, 25728, 26208, 27872, 28944, 30016, 31356, 33768, 34944, 36582, 38592, 39312, 41808, 44928, 45024, 47034, 48776, 50652, 52416, 54873, 55744, 57888, 60032, 62712, 67536, 73164, 77184, 78624, 83616, 90048, 94068, 97552, 101304, 104832, 109746, 111488, 115776, 125424, 135072, 146328, 157248, 164619, 167232, 180096, 188136, 195104, 202608, 219492, 231552, 250848, 270144, 292656, 314496, 329238, 334464, 376272, 390208, 405216, 438984, 501696, 540288, 585312, 658476, 752544, 780416, 810432, 877968, 1003392, 1170624, 1316952, 1505088, 1620864, 1755936, 2341248, 2633904, 3010176, 3511872, 5267808, 7023744, 10535616, 21071232]

約数ペア:

[(1, 21071232), (2, 10535616), (3, 7023744), (4, 5267808), (6, 3511872), (7, 3010176), (8, 2633904), (9, 2341248), (12, 1755936), (13, 1620864), (14, 1505088), (16, 1316952), (18, 1170624), (21, 1003392), (24, 877968), (26, 810432), (27, 780416), (28, 752544), (32, 658476), (36, 585312), (39, 540288), (42, 501696), (48, 438984), (52, 405216), (54, 390208), (56, 376272), (63, 334464), (64, 329238), (67, 314496), (72, 292656), (78, 270144), (84, 250848), (91, 231552), (96, 219492), (104, 202608), (108, 195104), (112, 188136), (117, 180096), (126, 167232), (128, 164619), (134, 157248), (144, 146328), (156, 135072), (168, 125424), (182, 115776), (189, 111488), (192, 109746), (201, 104832), (208, 101304), (216, 97552), (224, 94068), (234, 90048), (252, 83616), (268, 78624), (273, 77184), (288, 73164), (312, 67536), (336, 62712), (351, 60032), (364, 57888), (378, 55744), (384, 54873), (402, 52416), (416, 50652), (432, 48776), (448, 47034), (468, 45024), (469, 44928), (504, 41808), (536, 39312), (546, 38592), (576, 36582), (603, 34944), (624, 33768), (672, 31356), (702, 30016), (728, 28944), (756, 27872), (804, 26208), (819, 25728), (832, 25326), (864, 24388), (871, 24192), (896, 23517), (936, 22512), (938, 22464), (1008, 20904), (1072, 19656), (1092, 19296), (1152, 18291), (1206, 17472), (1248, 16884), (1344, 15678), (1404, 15008), (1407, 14976), (1456, 14472), (1512, 13936), (1608, 13104), (1638, 12864), (1664, 12663), (1728, 12194), (1742, 12096), (1809, 11648), (1872, 11256), (1876, 11232), (2016, 10452), (2144, 9828), (2184, 9648), (2412, 8736), (2457, 8576), (2496, 8442), (2613, 8064), (2688, 7839), (2808, 7504), (2814, 7488), (2912, 7236), (3024, 6968), (3216, 6552), (3276, 6432), (3456, 6097), (3484, 6048), (3618, 5824), (3744, 5628), (3752, 5616), (4032, 5226), (4221, 4992), (4288, 4914), (4368, 4824)]