19206968

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{2161}}^1$

素因数の和:2279

約数の個数: 32

約数和(自身を含む): 39694320

約数和(自身を除く): 20487352

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 101, 202, 404, 808, 1111, 2161, 2222, 4322, 4444, 8644, 8888, 17288, 23771, 47542, 95084, 190168, 218261, 436522, 873044, 1746088, 2400871, 4801742, 9603484, 19206968]

約数ペア:

[(1, 19206968), (2, 9603484), (4, 4801742), (8, 2400871), (11, 1746088), (22, 873044), (44, 436522), (88, 218261), (101, 190168), (202, 95084), (404, 47542), (808, 23771), (1111, 17288), (2161, 8888), (2222, 8644), (4322, 4444)]