27571401

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1$

素因数の和:263

約数の個数: 64

約数和(自身を含む): 49539840

約数和(自身を除く): 21968439

約数列:

[1, 3, 9, 11, 13, 27, 33, 37, 39, 99, 111, 117, 143, 193, 297, 333, 351, 407, 429, 481, 579, 999, 1221, 1287, 1443, 1737, 2123, 2509, 3663, 3861, 4329, 5211, 5291, 6369, 7141, 7527, 10989, 12987, 15873, 19107, 21423, 22581, 27599, 47619, 57321, 64269, 67743, 78551, 82797, 92833, 142857, 192807, 235653, 248391, 278499, 706959, 745173, 835497, 1021163, 2120877, 2506491, 3063489, 9190467, 27571401]

約数ペア:

[(1, 27571401), (3, 9190467), (9, 3063489), (11, 2506491), (13, 2120877), (27, 1021163), (33, 835497), (37, 745173), (39, 706959), (99, 278499), (111, 248391), (117, 235653), (143, 192807), (193, 142857), (297, 92833), (333, 82797), (351, 78551), (407, 67743), (429, 64269), (481, 57321), (579, 47619), (999, 27599), (1221, 22581), (1287, 21423), (1443, 19107), (1737, 15873), (2123, 12987), (2509, 10989), (3663, 7527), (3861, 7141), (4329, 6369), (5211, 5291)]