21000784140

素因数分解:

$2^2\times 3^6\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1381}}^1$

素因数の和:1564

約数の個数: 336

約数和(自身を含む): 76130510400

約数和(自身を除く): 55129726260

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 149, 162, 180, 189, 210, 243, 252, 270, 298, 315, 324, 378, 405, 420, 447, 486, 540, 567, 596, 630, 729, 745, 756, 810, 894, 945, 972, 1043, 1134, 1215, 1260, 1341, 1381, 1458, 1490, 1620, 1701, 1788, 1890, 2086, 2235, 2268, 2430, 2682, 2762, 2835, 2916, 2980, 3129, 3402, 3645, 3780, 4023, 4143, 4172, 4470, 4860, 5103, 5215, 5364, 5524, 5670, 6258, 6705, 6804, 6905, 7290, 8046, 8286, 8505, 8940, 9387, 9667, 10206, 10430, 11340, 12069, 12429, 12516, 13410, 13810, 14580, 15645, 16092, 16572, 17010, 18774, 19334, 20115, 20412, 20715, 20860, 24138, 24858, 25515, 26820, 27620, 28161, 29001, 31290, 34020, 36207, 37287, 37548, 38668, 40230, 41430, 46935, 48276, 48335, 49716, 51030, 56322, 58002, 60345, 62145, 62580, 72414, 74574, 80460, 82860, 84483, 87003, 93870, 96670, 102060, 108621, 111861, 112644, 116004, 120690, 124290, 140805, 144828, 145005, 149148, 168966, 174006, 181035, 186435, 187740, 193340, 205769, 217242, 223722, 241380, 248580, 253449, 261009, 281610, 290010, 335583, 337932, 348012, 362070, 372870, 411538, 422415, 434484, 435015, 447444, 506898, 522018, 543105, 559305, 563220, 580020, 617307, 671166, 724140, 745740, 760347, 783027, 823076, 844830, 870030, 1006749, 1013796, 1028845, 1044036, 1086210, 1118610, 1234614, 1267245, 1305045, 1342332, 1440383, 1520694, 1566054, 1677915, 1689660, 1740060, 1851921, 2013498, 2057690, 2172420, 2237220, 2349081, 2469228, 2534490, 2610090, 2880766, 3041388, 3086535, 3132108, 3355830, 3703842, 3801735, 3915135, 4026996, 4115380, 4321149, 4698162, 5033745, 5068980, 5220180, 5555763, 5761532, 6173070, 6711660, 7047243, 7201915, 7407684, 7603470, 7830270, 8642298, 9259605, 9396324, 10067490, 11111526, 11745405, 12346140, 12963447, 14094486, 14403830, 15206940, 15660540, 16667289, 17284596, 18519210, 20134980, 21605745, 22223052, 23490810, 25926894, 27778815, 28188972, 28807660, 33334578, 35236215, 37038420, 38890341, 43211490, 46981620, 50001867, 51853788, 55557630, 64817235, 66669156, 70472430, 77780682, 83336445, 86422980, 100003734, 111115260, 116671023, 129634470, 140944860, 150005601, 155561364, 166672890, 194451705, 200007468, 233342046, 250009335, 259268940, 300011202, 333345780, 350013069, 388903410, 466684092, 500018670, 583355115, 600022404, 700026138, 750028005, 777806820, 1000037340, 1050039207, 1166710230, 1400052276, 1500056010, 1750065345, 2100078414, 2333420460, 3000112020, 3500130690, 4200156828, 5250196035, 7000261380, 10500392070, 21000784140]

約数ペア:

[(1, 21000784140), (2, 10500392070), (3, 7000261380), (4, 5250196035), (5, 4200156828), (6, 3500130690), (7, 3000112020), (9, 2333420460), (10, 2100078414), (12, 1750065345), (14, 1500056010), (15, 1400052276), (18, 1166710230), (20, 1050039207), (21, 1000037340), (27, 777806820), (28, 750028005), (30, 700026138), (35, 600022404), (36, 583355115), (42, 500018670), (45, 466684092), (54, 388903410), (60, 350013069), (63, 333345780), (70, 300011202), (81, 259268940), (84, 250009335), (90, 233342046), (105, 200007468), (108, 194451705), (126, 166672890), (135, 155561364), (140, 150005601), (149, 140944860), (162, 129634470), (180, 116671023), (189, 111115260), (210, 100003734), (243, 86422980), (252, 83336445), (270, 77780682), (298, 70472430), (315, 66669156), (324, 64817235), (378, 55557630), (405, 51853788), (420, 50001867), (447, 46981620), (486, 43211490), (540, 38890341), (567, 37038420), (596, 35236215), (630, 33334578), (729, 28807660), (745, 28188972), (756, 27778815), (810, 25926894), (894, 23490810), (945, 22223052), (972, 21605745), (1043, 20134980), (1134, 18519210), (1215, 17284596), (1260, 16667289), (1341, 15660540), (1381, 15206940), (1458, 14403830), (1490, 14094486), (1620, 12963447), (1701, 12346140), (1788, 11745405), (1890, 11111526), (2086, 10067490), (2235, 9396324), (2268, 9259605), (2430, 8642298), (2682, 7830270), (2762, 7603470), (2835, 7407684), (2916, 7201915), (2980, 7047243), (3129, 6711660), (3402, 6173070), (3645, 5761532), (3780, 5555763), (4023, 5220180), (4143, 5068980), (4172, 5033745), (4470, 4698162), (4860, 4321149), (5103, 4115380), (5215, 4026996), (5364, 3915135), (5524, 3801735), (5670, 3703842), (6258, 3355830), (6705, 3132108), (6804, 3086535), (6905, 3041388), (7290, 2880766), (8046, 2610090), (8286, 2534490), (8505, 2469228), (8940, 2349081), (9387, 2237220), (9667, 2172420), (10206, 2057690), (10430, 2013498), (11340, 1851921), (12069, 1740060), (12429, 1689660), (12516, 1677915), (13410, 1566054), (13810, 1520694), (14580, 1440383), (15645, 1342332), (16092, 1305045), (16572, 1267245), (17010, 1234614), (18774, 1118610), (19334, 1086210), (20115, 1044036), (20412, 1028845), (20715, 1013796), (20860, 1006749), (24138, 870030), (24858, 844830), (25515, 823076), (26820, 783027), (27620, 760347), (28161, 745740), (29001, 724140), (31290, 671166), (34020, 617307), (36207, 580020), (37287, 563220), (37548, 559305), (38668, 543105), (40230, 522018), (41430, 506898), (46935, 447444), (48276, 435015), (48335, 434484), (49716, 422415), (51030, 411538), (56322, 372870), (58002, 362070), (60345, 348012), (62145, 337932), (62580, 335583), (72414, 290010), (74574, 281610), (80460, 261009), (82860, 253449), (84483, 248580), (87003, 241380), (93870, 223722), (96670, 217242), (102060, 205769), (108621, 193340), (111861, 187740), (112644, 186435), (116004, 181035), (120690, 174006), (124290, 168966), (140805, 149148), (144828, 145005)]