21777756

素因数分解:

$2^2\times 3^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1$

素因数の和:89

約数の個数: 192

約数和(自身を含む): 71500800

約数和(自身を除く): 49723044

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 13, 14, 21, 22, 26, 28, 33, 37, 39, 42, 44, 49, 52, 66, 74, 77, 78, 84, 91, 98, 111, 132, 143, 147, 148, 154, 156, 182, 196, 222, 231, 259, 273, 286, 294, 308, 343, 364, 407, 429, 444, 462, 481, 518, 539, 546, 572, 588, 637, 686, 777, 814, 858, 924, 962, 1001, 1029, 1036, 1078, 1092, 1221, 1274, 1372, 1443, 1554, 1617, 1628, 1716, 1813, 1911, 1924, 2002, 2058, 2156, 2442, 2548, 2849, 2886, 3003, 3108, 3234, 3367, 3626, 3773, 3822, 4004, 4116, 4459, 4884, 5291, 5439, 5698, 5772, 6006, 6468, 6734, 7007, 7252, 7546, 7644, 8547, 8918, 10101, 10582, 10878, 11319, 11396, 12012, 12691, 13377, 13468, 14014, 15092, 15873, 17094, 17836, 19943, 20202, 21021, 21164, 21756, 22638, 23569, 25382, 26754, 28028, 31746, 34188, 37037, 38073, 39886, 40404, 42042, 45276, 47138, 49049, 50764, 53508, 59829, 63492, 70707, 74074, 76146, 79772, 84084, 94276, 98098, 111111, 119658, 139601, 141414, 147147, 148148, 152292, 164983, 196196, 222222, 239316, 259259, 279202, 282828, 294294, 329966, 418803, 444444, 494949, 518518, 558404, 588588, 659932, 777777, 837606, 989898, 1037036, 1555554, 1675212, 1814813, 1979796, 3111108, 3629626, 5444439, 7259252, 10888878, 21777756]

約数ペア:

[(1, 21777756), (2, 10888878), (3, 7259252), (4, 5444439), (6, 3629626), (7, 3111108), (11, 1979796), (12, 1814813), (13, 1675212), (14, 1555554), (21, 1037036), (22, 989898), (26, 837606), (28, 777777), (33, 659932), (37, 588588), (39, 558404), (42, 518518), (44, 494949), (49, 444444), (52, 418803), (66, 329966), (74, 294294), (77, 282828), (78, 279202), (84, 259259), (91, 239316), (98, 222222), (111, 196196), (132, 164983), (143, 152292), (147, 148148), (148, 147147), (154, 141414), (156, 139601), (182, 119658), (196, 111111), (222, 98098), (231, 94276), (259, 84084), (273, 79772), (286, 76146), (294, 74074), (308, 70707), (343, 63492), (364, 59829), (407, 53508), (429, 50764), (444, 49049), (462, 47138), (481, 45276), (518, 42042), (539, 40404), (546, 39886), (572, 38073), (588, 37037), (637, 34188), (686, 31746), (777, 28028), (814, 26754), (858, 25382), (924, 23569), (962, 22638), (1001, 21756), (1029, 21164), (1036, 21021), (1078, 20202), (1092, 19943), (1221, 17836), (1274, 17094), (1372, 15873), (1443, 15092), (1554, 14014), (1617, 13468), (1628, 13377), (1716, 12691), (1813, 12012), (1911, 11396), (1924, 11319), (2002, 10878), (2058, 10582), (2156, 10101), (2442, 8918), (2548, 8547), (2849, 7644), (2886, 7546), (3003, 7252), (3108, 7007), (3234, 6734), (3367, 6468), (3626, 6006), (3773, 5772), (3822, 5698), (4004, 5439), (4116, 5291), (4459, 4884)]