208066887

素因数分解:

$3^4\times 7^3\times {\mathrm{7489}}^1$

素因数の和:7522

約数の個数: 40

約数和(自身を含む): 362516000

約数和(自身を除く): 154449113

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 343, 441, 567, 1029, 1323, 3087, 3969, 7489, 9261, 22467, 27783, 52423, 67401, 157269, 202203, 366961, 471807, 606609, 1100883, 1415421, 2568727, 3302649, 4246263, 7706181, 9907947, 23118543, 29723841, 69355629, 208066887]

約数ペア:

[(1, 208066887), (3, 69355629), (7, 29723841), (9, 23118543), (21, 9907947), (27, 7706181), (49, 4246263), (63, 3302649), (81, 2568727), (147, 1415421), (189, 1100883), (343, 606609), (441, 471807), (567, 366961), (1029, 202203), (1323, 157269), (3087, 67401), (3969, 52423), (7489, 27783), (9261, 22467)]