21086468788

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{337}}^1\times {\mathrm{911}}^1$

素因数の和:1493

約数の個数: 96

約数和(自身を含む): 46401159168

約数和(自身を除く): 25314690380

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 223, 308, 337, 446, 674, 892, 911, 1348, 1561, 1822, 2359, 2453, 3122, 3644, 3707, 4718, 4906, 6244, 6377, 7414, 9436, 9812, 10021, 12754, 14828, 17171, 20042, 25508, 25949, 34342, 40084, 51898, 68684, 70147, 75151, 103796, 140294, 150302, 203153, 280588, 300604, 307007, 406306, 526057, 614014, 812612, 826661, 1052114, 1228028, 1422071, 1653322, 2104228, 2149049, 2234683, 2844142, 3306644, 3377077, 4298098, 4469366, 5688284, 5786627, 6754154, 8596196, 8938732, 11573254, 13508308, 15642781, 23146508, 23639539, 31285562, 47279078, 62571124, 68462561, 94558156, 136925122, 273850244, 479237927, 753088171, 958475854, 1506176342, 1916951708, 3012352684, 5271617197, 10543234394, 21086468788]

約数ペア:

[(1, 21086468788), (2, 10543234394), (4, 5271617197), (7, 3012352684), (11, 1916951708), (14, 1506176342), (22, 958475854), (28, 753088171), (44, 479237927), (77, 273850244), (154, 136925122), (223, 94558156), (308, 68462561), (337, 62571124), (446, 47279078), (674, 31285562), (892, 23639539), (911, 23146508), (1348, 15642781), (1561, 13508308), (1822, 11573254), (2359, 8938732), (2453, 8596196), (3122, 6754154), (3644, 5786627), (3707, 5688284), (4718, 4469366), (4906, 4298098), (6244, 3377077), (6377, 3306644), (7414, 2844142), (9436, 2234683), (9812, 2149049), (10021, 2104228), (12754, 1653322), (14828, 1422071), (17171, 1228028), (20042, 1052114), (25508, 826661), (25949, 812612), (34342, 614014), (40084, 526057), (51898, 406306), (68684, 307007), (70147, 300604), (75151, 280588), (103796, 203153), (140294, 150302)]