19165468

素因数分解:

$2^2\times 7^3\times {\mathrm{61}}^1\times {\mathrm{229}}^1$

素因数の和:315

約数の個数: 48

約数和(自身を含む): 39928000

約数和(自身を除く): 20762532

約数列:

[1, 2, 4, 7, 14, 28, 49, 61, 98, 122, 196, 229, 244, 343, 427, 458, 686, 854, 916, 1372, 1603, 1708, 2989, 3206, 5978, 6412, 11221, 11956, 13969, 20923, 22442, 27938, 41846, 44884, 55876, 78547, 83692, 97783, 157094, 195566, 314188, 391132, 684481, 1368962, 2737924, 4791367, 9582734, 19165468]

約数ペア:

[(1, 19165468), (2, 9582734), (4, 4791367), (7, 2737924), (14, 1368962), (28, 684481), (49, 391132), (61, 314188), (98, 195566), (122, 157094), (196, 97783), (229, 83692), (244, 78547), (343, 55876), (427, 44884), (458, 41846), (686, 27938), (854, 22442), (916, 20923), (1372, 13969), (1603, 11956), (1708, 11221), (2989, 6412), (3206, 5978)]