19959709

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1949}}^1$

素因数の和:1993

約数の個数: 24

約数和(自身を含む): 26676000

約数和(自身を除く): 6716291

約数列:

[1, 7, 11, 19, 49, 77, 133, 209, 539, 931, 1463, 1949, 10241, 13643, 21439, 37031, 95501, 150073, 259217, 407341, 1050511, 1814519, 2851387, 19959709]

約数ペア:

[(1, 19959709), (7, 2851387), (11, 1814519), (19, 1050511), (49, 407341), (77, 259217), (133, 150073), (209, 95501), (539, 37031), (931, 21439), (1463, 13643), (1949, 10241)]