28673337

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:226

約数の個数: 64

約数和(自身を含む): 51609600

約数和(自身を除く): 22936263

約数列:

[1, 3, 7, 11, 19, 21, 33, 47, 57, 77, 133, 139, 141, 209, 231, 329, 399, 417, 517, 627, 893, 973, 987, 1463, 1529, 1551, 2641, 2679, 2919, 3619, 4389, 4587, 6251, 6533, 7923, 9823, 10703, 10857, 18487, 18753, 19599, 29051, 29469, 32109, 45731, 55461, 68761, 71863, 87153, 124127, 137193, 203357, 206283, 215589, 372381, 503041, 610071, 868889, 1365397, 1509123, 2606667, 4096191, 9557779, 28673337]

約数ペア:

[(1, 28673337), (3, 9557779), (7, 4096191), (11, 2606667), (19, 1509123), (21, 1365397), (33, 868889), (47, 610071), (57, 503041), (77, 372381), (133, 215589), (139, 206283), (141, 203357), (209, 137193), (231, 124127), (329, 87153), (399, 71863), (417, 68761), (517, 55461), (627, 45731), (893, 32109), (973, 29469), (987, 29051), (1463, 19599), (1529, 18753), (1551, 18487), (2641, 10857), (2679, 10703), (2919, 9823), (3619, 7923), (4389, 6533), (4587, 6251)]