21000340808

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1\times {\mathrm{8329}}^1$

素因数の和:8622

約数の個数: 64

約数和(自身を含む): 41887238400

約数和(自身を除く): 20886897592

約数列:

[1, 2, 4, 8, 23, 46, 71, 92, 142, 184, 193, 284, 386, 568, 772, 1544, 1633, 3266, 4439, 6532, 8329, 8878, 13064, 13703, 16658, 17756, 27406, 33316, 35512, 54812, 66632, 109624, 191567, 315169, 383134, 591359, 630338, 766268, 1182718, 1260676, 1532536, 1607497, 2365436, 2521352, 3214994, 4730872, 6429988, 12859976, 13601257, 27202514, 36972431, 54405028, 73944862, 108810056, 114132287, 147889724, 228264574, 295779448, 456529148, 913058296, 2625042601, 5250085202, 10500170404, 21000340808]

約数ペア:

[(1, 21000340808), (2, 10500170404), (4, 5250085202), (8, 2625042601), (23, 913058296), (46, 456529148), (71, 295779448), (92, 228264574), (142, 147889724), (184, 114132287), (193, 108810056), (284, 73944862), (386, 54405028), (568, 36972431), (772, 27202514), (1544, 13601257), (1633, 12859976), (3266, 6429988), (4439, 4730872), (6532, 3214994), (8329, 2521352), (8878, 2365436), (13064, 1607497), (13703, 1532536), (16658, 1260676), (17756, 1182718), (27406, 766268), (33316, 630338), (35512, 591359), (54812, 383134), (66632, 315169), (109624, 191567)]