19908548

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{2029}}^1$

素因数の和:2267

約数の個数: 24

約数和(自身を含む): 38196480

約数和(自身を除く): 18287932

約数列:

[1, 2, 4, 11, 22, 44, 223, 446, 892, 2029, 2453, 4058, 4906, 8116, 9812, 22319, 44638, 89276, 452467, 904934, 1809868, 4977137, 9954274, 19908548]

約数ペア:

[(1, 19908548), (2, 9954274), (4, 4977137), (11, 1809868), (22, 904934), (44, 452467), (223, 89276), (446, 44638), (892, 22319), (2029, 9812), (2453, 8116), (4058, 4906)]