21257090820

素因数分解:

$2^2\times 3^5\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{3881}}^1$

素因数の和:3942

約数の個数: 432

約数和(自身を含む): 81188085888

約数和(自身を除く): 59930995068

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 27, 28, 30, 35, 36, 42, 45, 46, 49, 54, 60, 63, 69, 70, 81, 84, 90, 92, 98, 105, 108, 115, 126, 135, 138, 140, 147, 161, 162, 180, 189, 196, 207, 210, 230, 243, 245, 252, 270, 276, 294, 315, 322, 324, 345, 378, 405, 414, 420, 441, 460, 483, 486, 490, 540, 567, 588, 621, 630, 644, 690, 735, 756, 805, 810, 828, 882, 945, 966, 972, 980, 1035, 1127, 1134, 1215, 1242, 1260, 1323, 1380, 1449, 1470, 1610, 1620, 1701, 1764, 1863, 1890, 1932, 2070, 2205, 2254, 2268, 2415, 2430, 2484, 2646, 2835, 2898, 2940, 3105, 3220, 3381, 3402, 3726, 3780, 3881, 3969, 4140, 4347, 4410, 4508, 4830, 4860, 5292, 5589, 5635, 5670, 5796, 6210, 6615, 6762, 6804, 7245, 7452, 7762, 7938, 8505, 8694, 8820, 9315, 9660, 10143, 11178, 11270, 11340, 11643, 11907, 12420, 13041, 13230, 13524, 14490, 15524, 15876, 16905, 17010, 17388, 18630, 19405, 19845, 20286, 21735, 22356, 22540, 23286, 23814, 26082, 26460, 27167, 27945, 28980, 30429, 33810, 34020, 34929, 37260, 38810, 39123, 39690, 40572, 43470, 46572, 47628, 50715, 52164, 54334, 55890, 58215, 59535, 60858, 65205, 67620, 69858, 77620, 78246, 79380, 81501, 86940, 89263, 91287, 101430, 104787, 108668, 111780, 116430, 119070, 121716, 130410, 135835, 139716, 152145, 156492, 163002, 174645, 178526, 182574, 190169, 195615, 202860, 209574, 232860, 238140, 244503, 260820, 267789, 271670, 273861, 304290, 314361, 326004, 349290, 357052, 365148, 380338, 391230, 407505, 419148, 446315, 456435, 489006, 523935, 535578, 543340, 547722, 570507, 608580, 624841, 628722, 698580, 733509, 760676, 782460, 803367, 815010, 892630, 912870, 943083, 950845, 978012, 1047870, 1071156, 1095444, 1141014, 1222515, 1249682, 1257444, 1338945, 1369305, 1467018, 1571805, 1606734, 1630020, 1711521, 1785260, 1825740, 1874523, 1886166, 1901690, 2095740, 2200527, 2282028, 2410101, 2445030, 2499364, 2677890, 2738610, 2852535, 2934036, 3124205, 3143610, 3213468, 3423042, 3667545, 3749046, 3772332, 3803380, 4016835, 4373887, 4401054, 4715415, 4820202, 4890060, 5134563, 5355780, 5477220, 5623569, 5705070, 6248410, 6287220, 6601581, 6846084, 7230303, 7335090, 7498092, 8033670, 8557605, 8747774, 8802108, 9372615, 9430830, 9640404, 10269126, 11002635, 11247138, 11410140, 12050505, 12496820, 13121661, 13203162, 14460606, 14670180, 15403689, 16067340, 16870707, 17115210, 17495548, 18745230, 18861660, 20538252, 21690909, 21869435, 22005270, 22494276, 24101010, 25672815, 26243322, 26406324, 28117845, 28921212, 30807378, 33007905, 33741414, 34230420, 36151515, 37490460, 39364983, 43381818, 43738870, 44010540, 46211067, 48202020, 50612121, 51345630, 52486644, 56235690, 61614756, 65608305, 66015810, 67482828, 72303030, 77018445, 78729966, 84353535, 86763636, 87477740, 92422134, 101224242, 102691260, 108454545, 112471380, 118094949, 131216610, 132031620, 144606060, 151836363, 154036890, 157459932, 168707070, 184844268, 196824915, 202448484, 216909090, 231055335, 236189898, 253060605, 262433220, 303672726, 308073780, 337414140, 354284847, 393649830, 433818180, 462110670, 472379796, 506121210, 590474745, 607345452, 708569694, 759181815, 787299660, 924221340, 1012242420, 1062854541, 1180949490, 1417139388, 1518363630, 1771424235, 2125709082, 2361898980, 3036727260, 3542848470, 4251418164, 5314272705, 7085696940, 10628545410, 21257090820]

約数ペア:

[(1, 21257090820), (2, 10628545410), (3, 7085696940), (4, 5314272705), (5, 4251418164), (6, 3542848470), (7, 3036727260), (9, 2361898980), (10, 2125709082), (12, 1771424235), (14, 1518363630), (15, 1417139388), (18, 1180949490), (20, 1062854541), (21, 1012242420), (23, 924221340), (27, 787299660), (28, 759181815), (30, 708569694), (35, 607345452), (36, 590474745), (42, 506121210), (45, 472379796), (46, 462110670), (49, 433818180), (54, 393649830), (60, 354284847), (63, 337414140), (69, 308073780), (70, 303672726), (81, 262433220), (84, 253060605), (90, 236189898), (92, 231055335), (98, 216909090), (105, 202448484), (108, 196824915), (115, 184844268), (126, 168707070), (135, 157459932), (138, 154036890), (140, 151836363), (147, 144606060), (161, 132031620), (162, 131216610), (180, 118094949), (189, 112471380), (196, 108454545), (207, 102691260), (210, 101224242), (230, 92422134), (243, 87477740), (245, 86763636), (252, 84353535), (270, 78729966), (276, 77018445), (294, 72303030), (315, 67482828), (322, 66015810), (324, 65608305), (345, 61614756), (378, 56235690), (405, 52486644), (414, 51345630), (420, 50612121), (441, 48202020), (460, 46211067), (483, 44010540), (486, 43738870), (490, 43381818), (540, 39364983), (567, 37490460), (588, 36151515), (621, 34230420), (630, 33741414), (644, 33007905), (690, 30807378), (735, 28921212), (756, 28117845), (805, 26406324), (810, 26243322), (828, 25672815), (882, 24101010), (945, 22494276), (966, 22005270), (972, 21869435), (980, 21690909), (1035, 20538252), (1127, 18861660), (1134, 18745230), (1215, 17495548), (1242, 17115210), (1260, 16870707), (1323, 16067340), (1380, 15403689), (1449, 14670180), (1470, 14460606), (1610, 13203162), (1620, 13121661), (1701, 12496820), (1764, 12050505), (1863, 11410140), (1890, 11247138), (1932, 11002635), (2070, 10269126), (2205, 9640404), (2254, 9430830), (2268, 9372615), (2415, 8802108), (2430, 8747774), (2484, 8557605), (2646, 8033670), (2835, 7498092), (2898, 7335090), (2940, 7230303), (3105, 6846084), (3220, 6601581), (3381, 6287220), (3402, 6248410), (3726, 5705070), (3780, 5623569), (3881, 5477220), (3969, 5355780), (4140, 5134563), (4347, 4890060), (4410, 4820202), (4508, 4715415), (4830, 4401054), (4860, 4373887), (5292, 4016835), (5589, 3803380), (5635, 3772332), (5670, 3749046), (5796, 3667545), (6210, 3423042), (6615, 3213468), (6762, 3143610), (6804, 3124205), (7245, 2934036), (7452, 2852535), (7762, 2738610), (7938, 2677890), (8505, 2499364), (8694, 2445030), (8820, 2410101), (9315, 2282028), (9660, 2200527), (10143, 2095740), (11178, 1901690), (11270, 1886166), (11340, 1874523), (11643, 1825740), (11907, 1785260), (12420, 1711521), (13041, 1630020), (13230, 1606734), (13524, 1571805), (14490, 1467018), (15524, 1369305), (15876, 1338945), (16905, 1257444), (17010, 1249682), (17388, 1222515), (18630, 1141014), (19405, 1095444), (19845, 1071156), (20286, 1047870), (21735, 978012), (22356, 950845), (22540, 943083), (23286, 912870), (23814, 892630), (26082, 815010), (26460, 803367), (27167, 782460), (27945, 760676), (28980, 733509), (30429, 698580), (33810, 628722), (34020, 624841), (34929, 608580), (37260, 570507), (38810, 547722), (39123, 543340), (39690, 535578), (40572, 523935), (43470, 489006), (46572, 456435), (47628, 446315), (50715, 419148), (52164, 407505), (54334, 391230), (55890, 380338), (58215, 365148), (59535, 357052), (60858, 349290), (65205, 326004), (67620, 314361), (69858, 304290), (77620, 273861), (78246, 271670), (79380, 267789), (81501, 260820), (86940, 244503), (89263, 238140), (91287, 232860), (101430, 209574), (104787, 202860), (108668, 195615), (111780, 190169), (116430, 182574), (119070, 178526), (121716, 174645), (130410, 163002), (135835, 156492), (139716, 152145)]