18090261

素因数分解:

$3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1$

素因数の和:183

約数の個数: 72

約数和(自身を含む): 34145280

約数和(自身を除く): 16055019

約数列:

[1, 3, 7, 9, 17, 19, 21, 49, 51, 57, 63, 119, 127, 133, 147, 153, 171, 323, 357, 381, 399, 441, 833, 889, 931, 969, 1071, 1143, 1197, 2159, 2261, 2413, 2499, 2667, 2793, 2907, 6223, 6477, 6783, 7239, 7497, 8001, 8379, 15113, 15827, 16891, 18669, 19431, 20349, 21717, 41021, 45339, 47481, 50673, 56007, 105791, 118237, 123063, 136017, 142443, 152019, 287147, 317373, 354711, 369189, 861441, 952119, 1064133, 2010029, 2584323, 6030087, 18090261]

約数ペア:

[(1, 18090261), (3, 6030087), (7, 2584323), (9, 2010029), (17, 1064133), (19, 952119), (21, 861441), (49, 369189), (51, 354711), (57, 317373), (63, 287147), (119, 152019), (127, 142443), (133, 136017), (147, 123063), (153, 118237), (171, 105791), (323, 56007), (357, 50673), (381, 47481), (399, 45339), (441, 41021), (833, 21717), (889, 20349), (931, 19431), (969, 18669), (1071, 16891), (1143, 15827), (1197, 15113), (2159, 8379), (2261, 8001), (2413, 7497), (2499, 7239), (2667, 6783), (2793, 6477), (2907, 6223)]