19997824

素因数分解:

$2^7\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2029}}^1$

素因数の和:2061

約数の個数: 64

約数和(自身を含む): 49694400

約数和(自身を除く): 29696576

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 64, 77, 88, 112, 128, 154, 176, 224, 308, 352, 448, 616, 704, 896, 1232, 1408, 2029, 2464, 4058, 4928, 8116, 9856, 14203, 16232, 22319, 28406, 32464, 44638, 56812, 64928, 89276, 113624, 129856, 156233, 178552, 227248, 259712, 312466, 357104, 454496, 624932, 714208, 908992, 1249864, 1428416, 1817984, 2499728, 2856832, 4999456, 9998912, 19997824]

約数ペア:

[(1, 19997824), (2, 9998912), (4, 4999456), (7, 2856832), (8, 2499728), (11, 1817984), (14, 1428416), (16, 1249864), (22, 908992), (28, 714208), (32, 624932), (44, 454496), (56, 357104), (64, 312466), (77, 259712), (88, 227248), (112, 178552), (128, 156233), (154, 129856), (176, 113624), (224, 89276), (308, 64928), (352, 56812), (448, 44638), (616, 32464), (704, 28406), (896, 22319), (1232, 16232), (1408, 14203), (2029, 9856), (2464, 8116), (4058, 4928)]