21273840

素因数分解:

$2^4\times 3^4\times 5^1\times 7^2\times {\mathrm{67}}^1$

素因数の和:106

約数の個数: 300

約数和(自身を含む): 87233256

約数和(自身を除く): 65959416

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 49, 54, 56, 60, 63, 67, 70, 72, 80, 81, 84, 90, 98, 105, 108, 112, 120, 126, 134, 135, 140, 144, 147, 162, 168, 180, 189, 196, 201, 210, 216, 240, 245, 252, 268, 270, 280, 294, 315, 324, 335, 336, 360, 378, 392, 402, 405, 420, 432, 441, 469, 490, 504, 536, 540, 560, 567, 588, 603, 630, 648, 670, 720, 735, 756, 784, 804, 810, 840, 882, 938, 945, 980, 1005, 1008, 1072, 1080, 1134, 1176, 1206, 1260, 1296, 1323, 1340, 1407, 1470, 1512, 1608, 1620, 1680, 1764, 1809, 1876, 1890, 1960, 2010, 2160, 2205, 2268, 2345, 2352, 2412, 2520, 2646, 2680, 2814, 2835, 2940, 3015, 3024, 3216, 3240, 3283, 3528, 3618, 3752, 3780, 3920, 3969, 4020, 4221, 4410, 4536, 4690, 4824, 5040, 5292, 5360, 5427, 5628, 5670, 5880, 6030, 6480, 6566, 6615, 7035, 7056, 7236, 7504, 7560, 7938, 8040, 8442, 8820, 9045, 9072, 9380, 9648, 9849, 10584, 10854, 11256, 11340, 11760, 12060, 12663, 13132, 13230, 14070, 14472, 15120, 15876, 16080, 16415, 16884, 17640, 18090, 18760, 19698, 19845, 21105, 21168, 21708, 22512, 22680, 24120, 25326, 26264, 26460, 27135, 28140, 28944, 29547, 31752, 32830, 33768, 35280, 36180, 37520, 37989, 39396, 39690, 42210, 43416, 45360, 48240, 49245, 50652, 52528, 52920, 54270, 56280, 59094, 63315, 63504, 65660, 67536, 72360, 75978, 78792, 79380, 84420, 86832, 88641, 98490, 101304, 105840, 108540, 112560, 118188, 126630, 131320, 144720, 147735, 151956, 157584, 158760, 168840, 177282, 189945, 196980, 202608, 217080, 236376, 253260, 262640, 265923, 295470, 303912, 317520, 337680, 354564, 379890, 393960, 434160, 443205, 472752, 506520, 531846, 590940, 607824, 709128, 759780, 787920, 886410, 1013040, 1063692, 1181880, 1329615, 1418256, 1519560, 1772820, 2127384, 2363760, 2659230, 3039120, 3545640, 4254768, 5318460, 7091280, 10636920, 21273840]

約数ペア:

[(1, 21273840), (2, 10636920), (3, 7091280), (4, 5318460), (5, 4254768), (6, 3545640), (7, 3039120), (8, 2659230), (9, 2363760), (10, 2127384), (12, 1772820), (14, 1519560), (15, 1418256), (16, 1329615), (18, 1181880), (20, 1063692), (21, 1013040), (24, 886410), (27, 787920), (28, 759780), (30, 709128), (35, 607824), (36, 590940), (40, 531846), (42, 506520), (45, 472752), (48, 443205), (49, 434160), (54, 393960), (56, 379890), (60, 354564), (63, 337680), (67, 317520), (70, 303912), (72, 295470), (80, 265923), (81, 262640), (84, 253260), (90, 236376), (98, 217080), (105, 202608), (108, 196980), (112, 189945), (120, 177282), (126, 168840), (134, 158760), (135, 157584), (140, 151956), (144, 147735), (147, 144720), (162, 131320), (168, 126630), (180, 118188), (189, 112560), (196, 108540), (201, 105840), (210, 101304), (216, 98490), (240, 88641), (245, 86832), (252, 84420), (268, 79380), (270, 78792), (280, 75978), (294, 72360), (315, 67536), (324, 65660), (335, 63504), (336, 63315), (360, 59094), (378, 56280), (392, 54270), (402, 52920), (405, 52528), (420, 50652), (432, 49245), (441, 48240), (469, 45360), (490, 43416), (504, 42210), (536, 39690), (540, 39396), (560, 37989), (567, 37520), (588, 36180), (603, 35280), (630, 33768), (648, 32830), (670, 31752), (720, 29547), (735, 28944), (756, 28140), (784, 27135), (804, 26460), (810, 26264), (840, 25326), (882, 24120), (938, 22680), (945, 22512), (980, 21708), (1005, 21168), (1008, 21105), (1072, 19845), (1080, 19698), (1134, 18760), (1176, 18090), (1206, 17640), (1260, 16884), (1296, 16415), (1323, 16080), (1340, 15876), (1407, 15120), (1470, 14472), (1512, 14070), (1608, 13230), (1620, 13132), (1680, 12663), (1764, 12060), (1809, 11760), (1876, 11340), (1890, 11256), (1960, 10854), (2010, 10584), (2160, 9849), (2205, 9648), (2268, 9380), (2345, 9072), (2352, 9045), (2412, 8820), (2520, 8442), (2646, 8040), (2680, 7938), (2814, 7560), (2835, 7504), (2940, 7236), (3015, 7056), (3024, 7035), (3216, 6615), (3240, 6566), (3283, 6480), (3528, 6030), (3618, 5880), (3752, 5670), (3780, 5628), (3920, 5427), (3969, 5360), (4020, 5292), (4221, 5040), (4410, 4824), (4536, 4690)]