18990496

素因数分解:

$2^5\times 7^1\times {\mathrm{17}}^1\times {\mathrm{4987}}^1$

素因数の和:5021

約数の個数: 48

約数和(自身を含む): 45251136

約数和(自身を除く): 26260640

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 68, 112, 119, 136, 224, 238, 272, 476, 544, 952, 1904, 3808, 4987, 9974, 19948, 34909, 39896, 69818, 79792, 84779, 139636, 159584, 169558, 279272, 339116, 558544, 593453, 678232, 1117088, 1186906, 1356464, 2373812, 2712928, 4747624, 9495248, 18990496]

約数ペア:

[(1, 18990496), (2, 9495248), (4, 4747624), (7, 2712928), (8, 2373812), (14, 1356464), (16, 1186906), (17, 1117088), (28, 678232), (32, 593453), (34, 558544), (56, 339116), (68, 279272), (112, 169558), (119, 159584), (136, 139636), (224, 84779), (238, 79792), (272, 69818), (476, 39896), (544, 34909), (952, 19948), (1904, 9974), (3808, 4987)]