205503837

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1217}}^1$

素因数の和:1298

約数の個数: 64

約数和(自身を含む): 370427904

約数和(自身を除く): 164924067

約数列:

[1, 3, 7, 11, 17, 21, 33, 43, 51, 77, 119, 129, 187, 231, 301, 357, 473, 561, 731, 903, 1217, 1309, 1419, 2193, 3311, 3651, 3927, 5117, 8041, 8519, 9933, 13387, 15351, 20689, 24123, 25557, 40161, 52331, 56287, 62067, 93709, 144823, 156993, 168861, 227579, 281127, 366317, 434469, 575641, 682737, 889627, 1098951, 1593053, 1726923, 2668881, 4029487, 4779159, 6227389, 9785897, 12088461, 18682167, 29357691, 68501279, 205503837]

約数ペア:

[(1, 205503837), (3, 68501279), (7, 29357691), (11, 18682167), (17, 12088461), (21, 9785897), (33, 6227389), (43, 4779159), (51, 4029487), (77, 2668881), (119, 1726923), (129, 1593053), (187, 1098951), (231, 889627), (301, 682737), (357, 575641), (473, 434469), (561, 366317), (731, 281127), (903, 227579), (1217, 168861), (1309, 156993), (1419, 144823), (2193, 93709), (3311, 62067), (3651, 56287), (3927, 52331), (5117, 40161), (8041, 25557), (8519, 24123), (9933, 20689), (13387, 15351)]