21915247508

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^2\times {\mathrm{53}}^1\times {\mathrm{127}}^1$

素因数の和:275

約数の個数: 216

約数和(自身を含む): 51120211968

約数和(自身を除く): 29204964460

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 31, 44, 53, 62, 77, 106, 121, 124, 127, 154, 212, 217, 242, 254, 308, 341, 371, 434, 484, 508, 583, 682, 742, 847, 868, 889, 961, 1166, 1364, 1397, 1484, 1643, 1694, 1778, 1922, 2332, 2387, 2794, 3286, 3388, 3556, 3751, 3844, 3937, 4081, 4774, 5588, 6413, 6572, 6727, 6731, 7502, 7874, 8162, 9548, 9779, 10571, 11501, 12826, 13454, 13462, 15004, 15367, 15748, 16324, 18073, 19558, 21142, 23002, 25652, 26257, 26908, 26924, 27559, 30734, 36146, 39116, 42284, 43307, 44891, 46004, 47117, 50933, 52514, 55118, 61468, 72292, 73997, 74041, 86614, 89782, 94234, 101866, 105028, 107569, 110236, 116281, 122047, 126511, 147994, 148082, 173228, 179564, 188468, 198803, 203732, 208661, 215138, 232562, 244094, 253022, 295988, 296164, 303149, 356531, 397606, 417322, 430276, 465124, 476377, 488188, 506044, 518287, 560263, 606298, 713062, 795212, 813967, 814451, 834644, 854329, 952754, 1036574, 1120526, 1212596, 1342517, 1391621, 1426124, 1460627, 1627934, 1628902, 1708658, 1905508, 2073148, 2241052, 2295271, 2685034, 2783242, 2921254, 3255868, 3257804, 3334639, 3417316, 3921841, 4590542, 5370068, 5566484, 5701157, 5842508, 6162893, 6468491, 6669278, 7843682, 9181084, 9397619, 11402314, 12325786, 12936982, 13338556, 14767687, 15687364, 16066897, 18795238, 22804628, 24651572, 25247981, 25873964, 29535374, 32133794, 37590476, 43140251, 45279437, 50495962, 59070748, 64267588, 71153401, 86280502, 90558874, 100991924, 103373809, 142306802, 172561004, 176735867, 181117748, 206747618, 284613604, 353471734, 413495236, 498073807, 706943468, 782687411, 996147614, 1565374822, 1992295228, 3130749644, 5478811877, 10957623754, 21915247508]

約数ペア:

[(1, 21915247508), (2, 10957623754), (4, 5478811877), (7, 3130749644), (11, 1992295228), (14, 1565374822), (22, 996147614), (28, 782687411), (31, 706943468), (44, 498073807), (53, 413495236), (62, 353471734), (77, 284613604), (106, 206747618), (121, 181117748), (124, 176735867), (127, 172561004), (154, 142306802), (212, 103373809), (217, 100991924), (242, 90558874), (254, 86280502), (308, 71153401), (341, 64267588), (371, 59070748), (434, 50495962), (484, 45279437), (508, 43140251), (583, 37590476), (682, 32133794), (742, 29535374), (847, 25873964), (868, 25247981), (889, 24651572), (961, 22804628), (1166, 18795238), (1364, 16066897), (1397, 15687364), (1484, 14767687), (1643, 13338556), (1694, 12936982), (1778, 12325786), (1922, 11402314), (2332, 9397619), (2387, 9181084), (2794, 7843682), (3286, 6669278), (3388, 6468491), (3556, 6162893), (3751, 5842508), (3844, 5701157), (3937, 5566484), (4081, 5370068), (4774, 4590542), (5588, 3921841), (6413, 3417316), (6572, 3334639), (6727, 3257804), (6731, 3255868), (7502, 2921254), (7874, 2783242), (8162, 2685034), (9548, 2295271), (9779, 2241052), (10571, 2073148), (11501, 1905508), (12826, 1708658), (13454, 1628902), (13462, 1627934), (15004, 1460627), (15367, 1426124), (15748, 1391621), (16324, 1342517), (18073, 1212596), (19558, 1120526), (21142, 1036574), (23002, 952754), (25652, 854329), (26257, 834644), (26908, 814451), (26924, 813967), (27559, 795212), (30734, 713062), (36146, 606298), (39116, 560263), (42284, 518287), (43307, 506044), (44891, 488188), (46004, 476377), (47117, 465124), (50933, 430276), (52514, 417322), (55118, 397606), (61468, 356531), (72292, 303149), (73997, 296164), (74041, 295988), (86614, 253022), (89782, 244094), (94234, 232562), (101866, 215138), (105028, 208661), (107569, 203732), (110236, 198803), (116281, 188468), (122047, 179564), (126511, 173228), (147994, 148082)]