21051818672

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{383}}^1\times {\mathrm{3643}}^1$

素因数の和:4098

約数の個数: 80

約数和(自身を含む): 43725201408

約数和(自身を除く): 22673382736

約数列:

[1, 2, 4, 8, 16, 23, 41, 46, 82, 92, 164, 184, 328, 368, 383, 656, 766, 943, 1532, 1886, 3064, 3643, 3772, 6128, 7286, 7544, 8809, 14572, 15088, 15703, 17618, 29144, 31406, 35236, 58288, 62812, 70472, 83789, 125624, 140944, 149363, 167578, 251248, 298726, 335156, 361169, 597452, 670312, 722338, 1194904, 1340624, 1395269, 1444676, 2389808, 2790538, 2889352, 3435349, 5581076, 5778704, 6870698, 11162152, 13741396, 22324304, 27482792, 32091187, 54965584, 57206029, 64182374, 114412058, 128364748, 228824116, 256729496, 457648232, 513458992, 915296464, 1315738667, 2631477334, 5262954668, 10525909336, 21051818672]

約数ペア:

[(1, 21051818672), (2, 10525909336), (4, 5262954668), (8, 2631477334), (16, 1315738667), (23, 915296464), (41, 513458992), (46, 457648232), (82, 256729496), (92, 228824116), (164, 128364748), (184, 114412058), (328, 64182374), (368, 57206029), (383, 54965584), (656, 32091187), (766, 27482792), (943, 22324304), (1532, 13741396), (1886, 11162152), (3064, 6870698), (3643, 5778704), (3772, 5581076), (6128, 3435349), (7286, 2889352), (7544, 2790538), (8809, 2389808), (14572, 1444676), (15088, 1395269), (15703, 1340624), (17618, 1194904), (29144, 722338), (31406, 670312), (35236, 597452), (58288, 361169), (62812, 335156), (70472, 298726), (83789, 251248), (125624, 167578), (140944, 149363)]