21920707424

素因数分解:

$2^5\times 7^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{701}}^1$

素因数の和:787

約数の個数: 240

約数和(自身を含む): 56487923856

約数和(自身を除く): 34567216432

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 37, 44, 49, 56, 74, 77, 88, 98, 112, 148, 154, 176, 196, 224, 259, 296, 308, 343, 352, 392, 407, 518, 539, 592, 616, 686, 701, 784, 814, 1036, 1078, 1184, 1232, 1372, 1402, 1568, 1628, 1813, 2072, 2156, 2401, 2464, 2744, 2804, 2849, 3256, 3626, 3773, 4144, 4312, 4802, 4907, 5488, 5608, 5698, 6512, 7252, 7546, 7711, 8288, 8624, 9604, 9814, 10976, 11216, 11396, 12691, 13024, 14504, 15092, 15422, 17248, 19208, 19628, 19943, 22432, 22792, 25382, 25937, 26411, 29008, 30184, 30844, 34349, 38416, 39256, 39886, 45584, 50764, 51874, 52822, 53977, 58016, 60368, 61688, 68698, 76832, 78512, 79772, 88837, 91168, 101528, 103748, 105644, 107954, 120736, 123376, 137396, 139601, 157024, 159544, 177674, 181559, 203056, 207496, 211288, 215908, 240443, 246752, 274792, 279202, 285307, 319088, 355348, 363118, 377839, 406112, 414992, 422576, 431816, 480886, 549584, 558404, 570614, 638176, 710696, 726236, 755678, 829984, 845152, 863632, 961772, 977207, 1099168, 1116808, 1141228, 1270913, 1421392, 1452472, 1511356, 1683101, 1727264, 1923544, 1954414, 1997149, 2233616, 2282456, 2541826, 2644873, 2842784, 2904944, 3022712, 3366202, 3847088, 3908828, 3994298, 4467232, 4564912, 5083652, 5289746, 5809888, 6045424, 6732404, 7694176, 7817656, 7988596, 8896391, 9129824, 10167304, 10579492, 12090848, 13464808, 13980043, 15635312, 15977192, 17792782, 18514111, 20334608, 21158984, 26929616, 27960086, 31270624, 31954384, 35585564, 37028222, 40669216, 42317968, 53859232, 55920172, 62274737, 63908768, 71171128, 74056444, 84635936, 97860301, 111840344, 124549474, 142342256, 148112888, 195720602, 223680688, 249098948, 284684512, 296225776, 391441204, 447361376, 498197896, 592451552, 685022107, 782882408, 996395792, 1370044214, 1565764816, 1992791584, 2740088428, 3131529632, 5480176856, 10960353712, 21920707424]

約数ペア:

[(1, 21920707424), (2, 10960353712), (4, 5480176856), (7, 3131529632), (8, 2740088428), (11, 1992791584), (14, 1565764816), (16, 1370044214), (22, 996395792), (28, 782882408), (32, 685022107), (37, 592451552), (44, 498197896), (49, 447361376), (56, 391441204), (74, 296225776), (77, 284684512), (88, 249098948), (98, 223680688), (112, 195720602), (148, 148112888), (154, 142342256), (176, 124549474), (196, 111840344), (224, 97860301), (259, 84635936), (296, 74056444), (308, 71171128), (343, 63908768), (352, 62274737), (392, 55920172), (407, 53859232), (518, 42317968), (539, 40669216), (592, 37028222), (616, 35585564), (686, 31954384), (701, 31270624), (784, 27960086), (814, 26929616), (1036, 21158984), (1078, 20334608), (1184, 18514111), (1232, 17792782), (1372, 15977192), (1402, 15635312), (1568, 13980043), (1628, 13464808), (1813, 12090848), (2072, 10579492), (2156, 10167304), (2401, 9129824), (2464, 8896391), (2744, 7988596), (2804, 7817656), (2849, 7694176), (3256, 6732404), (3626, 6045424), (3773, 5809888), (4144, 5289746), (4312, 5083652), (4802, 4564912), (4907, 4467232), (5488, 3994298), (5608, 3908828), (5698, 3847088), (6512, 3366202), (7252, 3022712), (7546, 2904944), (7711, 2842784), (8288, 2644873), (8624, 2541826), (9604, 2282456), (9814, 2233616), (10976, 1997149), (11216, 1954414), (11396, 1923544), (12691, 1727264), (13024, 1683101), (14504, 1511356), (15092, 1452472), (15422, 1421392), (17248, 1270913), (19208, 1141228), (19628, 1116808), (19943, 1099168), (22432, 977207), (22792, 961772), (25382, 863632), (25937, 845152), (26411, 829984), (29008, 755678), (30184, 726236), (30844, 710696), (34349, 638176), (38416, 570614), (39256, 558404), (39886, 549584), (45584, 480886), (50764, 431816), (51874, 422576), (52822, 414992), (53977, 406112), (58016, 377839), (60368, 363118), (61688, 355348), (68698, 319088), (76832, 285307), (78512, 279202), (79772, 274792), (88837, 246752), (91168, 240443), (101528, 215908), (103748, 211288), (105644, 207496), (107954, 203056), (120736, 181559), (123376, 177674), (137396, 159544), (139601, 157024)]