19887564

素因数分解:

$2^2\times 3^1\times {\mathrm{139}}^1\times {\mathrm{11923}}^1$

素因数の和:12069

約数の個数: 24

約数和(自身を含む): 46742080

約数和(自身を除く): 26854516

約数列:

[1, 2, 3, 4, 6, 12, 139, 278, 417, 556, 834, 1668, 11923, 23846, 35769, 47692, 71538, 143076, 1657297, 3314594, 4971891, 6629188, 9943782, 19887564]

約数ペア:

[(1, 19887564), (2, 9943782), (3, 6629188), (4, 4971891), (6, 3314594), (12, 1657297), (139, 143076), (278, 71538), (417, 47692), (556, 35769), (834, 23846), (1668, 11923)]