21421720936

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^3\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:277

約数の個数: 256

約数和(自身を含む): 53249310720

約数和(自身を除く): 31827589784

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 31, 44, 56, 62, 73, 77, 88, 121, 124, 127, 146, 154, 217, 242, 248, 254, 292, 308, 341, 434, 484, 508, 511, 584, 616, 682, 803, 847, 868, 889, 968, 1016, 1022, 1331, 1364, 1397, 1606, 1694, 1736, 1778, 2044, 2263, 2387, 2662, 2728, 2794, 3212, 3388, 3556, 3751, 3937, 4088, 4526, 4774, 5324, 5588, 5621, 6424, 6776, 7112, 7502, 7874, 8833, 9052, 9271, 9317, 9548, 9779, 10648, 11176, 11242, 15004, 15367, 15748, 15841, 17666, 18104, 18542, 18634, 19096, 19558, 22484, 24893, 26257, 27559, 30008, 30734, 31496, 31682, 35332, 37084, 37268, 39116, 41261, 43307, 44968, 49786, 52514, 55118, 61468, 61831, 63364, 64897, 70664, 74168, 74536, 78232, 82522, 86614, 97163, 99572, 101981, 105028, 107569, 110236, 122936, 123662, 126728, 129794, 165044, 169037, 173228, 174251, 194326, 199144, 203962, 210056, 215138, 220472, 247324, 259588, 273823, 287401, 288827, 303149, 330088, 338074, 346456, 348502, 388652, 407924, 430276, 476377, 494648, 519176, 547646, 574802, 577654, 606298, 676148, 680141, 697004, 713867, 777304, 815848, 860552, 952754, 1095292, 1121791, 1149604, 1155308, 1183259, 1212596, 1352296, 1360282, 1394008, 1427734, 1905508, 1916761, 2011807, 2190584, 2243582, 2299208, 2310616, 2366518, 2425192, 2720564, 2855468, 3012053, 3161411, 3334639, 3811016, 3833522, 4023614, 4487164, 4733036, 5240147, 5441128, 5710936, 6024106, 6322822, 6669278, 7667044, 7852537, 8047228, 8974328, 9466072, 10480294, 12048212, 12339701, 12645644, 13338556, 15334088, 15705074, 16094456, 20960588, 21084371, 22129877, 24096424, 24679402, 25291288, 26677112, 31410148, 34775521, 36681029, 41921176, 42168742, 44259754, 49358804, 62820296, 69551042, 73362058, 84337484, 86377907, 88519508, 98717608, 139102084, 146724116, 168674968, 172755814, 177039016, 243428647, 278204168, 293448232, 345511628, 382530731, 486857294, 691023256, 765061462, 973714588, 1530122924, 1947429176, 2677715117, 3060245848, 5355430234, 10710860468, 21421720936]

約数ペア:

[(1, 21421720936), (2, 10710860468), (4, 5355430234), (7, 3060245848), (8, 2677715117), (11, 1947429176), (14, 1530122924), (22, 973714588), (28, 765061462), (31, 691023256), (44, 486857294), (56, 382530731), (62, 345511628), (73, 293448232), (77, 278204168), (88, 243428647), (121, 177039016), (124, 172755814), (127, 168674968), (146, 146724116), (154, 139102084), (217, 98717608), (242, 88519508), (248, 86377907), (254, 84337484), (292, 73362058), (308, 69551042), (341, 62820296), (434, 49358804), (484, 44259754), (508, 42168742), (511, 41921176), (584, 36681029), (616, 34775521), (682, 31410148), (803, 26677112), (847, 25291288), (868, 24679402), (889, 24096424), (968, 22129877), (1016, 21084371), (1022, 20960588), (1331, 16094456), (1364, 15705074), (1397, 15334088), (1606, 13338556), (1694, 12645644), (1736, 12339701), (1778, 12048212), (2044, 10480294), (2263, 9466072), (2387, 8974328), (2662, 8047228), (2728, 7852537), (2794, 7667044), (3212, 6669278), (3388, 6322822), (3556, 6024106), (3751, 5710936), (3937, 5441128), (4088, 5240147), (4526, 4733036), (4774, 4487164), (5324, 4023614), (5588, 3833522), (5621, 3811016), (6424, 3334639), (6776, 3161411), (7112, 3012053), (7502, 2855468), (7874, 2720564), (8833, 2425192), (9052, 2366518), (9271, 2310616), (9317, 2299208), (9548, 2243582), (9779, 2190584), (10648, 2011807), (11176, 1916761), (11242, 1905508), (15004, 1427734), (15367, 1394008), (15748, 1360282), (15841, 1352296), (17666, 1212596), (18104, 1183259), (18542, 1155308), (18634, 1149604), (19096, 1121791), (19558, 1095292), (22484, 952754), (24893, 860552), (26257, 815848), (27559, 777304), (30008, 713867), (30734, 697004), (31496, 680141), (31682, 676148), (35332, 606298), (37084, 577654), (37268, 574802), (39116, 547646), (41261, 519176), (43307, 494648), (44968, 476377), (49786, 430276), (52514, 407924), (55118, 388652), (61468, 348502), (61831, 346456), (63364, 338074), (64897, 330088), (70664, 303149), (74168, 288827), (74536, 287401), (78232, 273823), (82522, 259588), (86614, 247324), (97163, 220472), (99572, 215138), (101981, 210056), (105028, 203962), (107569, 199144), (110236, 194326), (122936, 174251), (123662, 173228), (126728, 169037), (129794, 165044)]