21231504

素因数分解:

$2^4\times 3^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1$

素因数の和:107

約数の個数: 240

約数和(自身を含む): 76334400

約数和(自身を除く): 55102896

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 21, 24, 27, 28, 34, 36, 42, 48, 49, 51, 54, 56, 59, 63, 68, 72, 84, 98, 102, 108, 112, 118, 119, 126, 136, 144, 147, 153, 168, 177, 189, 196, 204, 216, 236, 238, 252, 272, 294, 306, 336, 354, 357, 378, 392, 408, 413, 432, 441, 459, 472, 476, 504, 531, 588, 612, 708, 714, 756, 784, 816, 826, 833, 882, 918, 944, 952, 1003, 1008, 1062, 1071, 1176, 1224, 1239, 1323, 1416, 1428, 1512, 1593, 1652, 1666, 1764, 1836, 1904, 2006, 2124, 2142, 2352, 2448, 2478, 2499, 2646, 2832, 2856, 2891, 3009, 3024, 3186, 3213, 3304, 3332, 3528, 3672, 3717, 4012, 4248, 4284, 4956, 4998, 5292, 5712, 5782, 6018, 6372, 6426, 6608, 6664, 7021, 7056, 7344, 7434, 7497, 8024, 8496, 8568, 8673, 9027, 9912, 9996, 10584, 11151, 11564, 12036, 12744, 12852, 13328, 14042, 14868, 14994, 16048, 17136, 17346, 18054, 19824, 19992, 21063, 21168, 22302, 22491, 23128, 24072, 25488, 25704, 26019, 27081, 28084, 29736, 29988, 34692, 36108, 39984, 42126, 44604, 44982, 46256, 48144, 49147, 51408, 52038, 54162, 56168, 59472, 59976, 63189, 69384, 72216, 78057, 84252, 89208, 89964, 98294, 104076, 108324, 112336, 119952, 126378, 138768, 144432, 147441, 156114, 168504, 178416, 179928, 189567, 196588, 208152, 216648, 252756, 294882, 312228, 337008, 359856, 379134, 393176, 416304, 433296, 442323, 505512, 589764, 624456, 758268, 786352, 884646, 1011024, 1179528, 1248912, 1326969, 1516536, 1769292, 2359056, 2653938, 3033072, 3538584, 5307876, 7077168, 10615752, 21231504]

約数ペア:

[(1, 21231504), (2, 10615752), (3, 7077168), (4, 5307876), (6, 3538584), (7, 3033072), (8, 2653938), (9, 2359056), (12, 1769292), (14, 1516536), (16, 1326969), (17, 1248912), (18, 1179528), (21, 1011024), (24, 884646), (27, 786352), (28, 758268), (34, 624456), (36, 589764), (42, 505512), (48, 442323), (49, 433296), (51, 416304), (54, 393176), (56, 379134), (59, 359856), (63, 337008), (68, 312228), (72, 294882), (84, 252756), (98, 216648), (102, 208152), (108, 196588), (112, 189567), (118, 179928), (119, 178416), (126, 168504), (136, 156114), (144, 147441), (147, 144432), (153, 138768), (168, 126378), (177, 119952), (189, 112336), (196, 108324), (204, 104076), (216, 98294), (236, 89964), (238, 89208), (252, 84252), (272, 78057), (294, 72216), (306, 69384), (336, 63189), (354, 59976), (357, 59472), (378, 56168), (392, 54162), (408, 52038), (413, 51408), (432, 49147), (441, 48144), (459, 46256), (472, 44982), (476, 44604), (504, 42126), (531, 39984), (588, 36108), (612, 34692), (708, 29988), (714, 29736), (756, 28084), (784, 27081), (816, 26019), (826, 25704), (833, 25488), (882, 24072), (918, 23128), (944, 22491), (952, 22302), (1003, 21168), (1008, 21063), (1062, 19992), (1071, 19824), (1176, 18054), (1224, 17346), (1239, 17136), (1323, 16048), (1416, 14994), (1428, 14868), (1512, 14042), (1593, 13328), (1652, 12852), (1666, 12744), (1764, 12036), (1836, 11564), (1904, 11151), (2006, 10584), (2124, 9996), (2142, 9912), (2352, 9027), (2448, 8673), (2478, 8568), (2499, 8496), (2646, 8024), (2832, 7497), (2856, 7434), (2891, 7344), (3009, 7056), (3024, 7021), (3186, 6664), (3213, 6608), (3304, 6426), (3332, 6372), (3528, 6018), (3672, 5782), (3717, 5712), (4012, 5292), (4248, 4998), (4284, 4956)]