21296121

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^2\times {\mathrm{29}}^1$

素因数の和:95

約数の個数: 72

約数和(自身を含む): 39197760

約数和(自身を除く): 17901639

約数列:

[1, 3, 7, 11, 17, 21, 29, 33, 51, 77, 87, 119, 121, 187, 203, 231, 289, 319, 357, 363, 493, 561, 609, 847, 867, 957, 1309, 1479, 2023, 2057, 2233, 2541, 3179, 3451, 3509, 3927, 5423, 6069, 6171, 6699, 8381, 9537, 10353, 10527, 14399, 16269, 22253, 24563, 25143, 34969, 37961, 43197, 58667, 59653, 66759, 73689, 92191, 104907, 113883, 176001, 178959, 244783, 276573, 417571, 645337, 734349, 1014101, 1252713, 1936011, 3042303, 7098707, 21296121]

約数ペア:

[(1, 21296121), (3, 7098707), (7, 3042303), (11, 1936011), (17, 1252713), (21, 1014101), (29, 734349), (33, 645337), (51, 417571), (77, 276573), (87, 244783), (119, 178959), (121, 176001), (187, 113883), (203, 104907), (231, 92191), (289, 73689), (319, 66759), (357, 59653), (363, 58667), (493, 43197), (561, 37961), (609, 34969), (847, 25143), (867, 24563), (957, 22253), (1309, 16269), (1479, 14399), (2023, 10527), (2057, 10353), (2233, 9537), (2541, 8381), (3179, 6699), (3451, 6171), (3509, 6069), (3927, 5423)]