19919834

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{10909}}^1$

素因数の和:11005

約数の個数: 16

約数和(自身を含む): 32991840

約数和(自身を除く): 13072006

約数列:

[1, 2, 11, 22, 83, 166, 913, 1826, 10909, 21818, 119999, 239998, 905447, 1810894, 9959917, 19919834]

約数ペア:

[(1, 19919834), (2, 9959917), (11, 1810894), (22, 905447), (83, 239998), (166, 119999), (913, 21818), (1826, 10909)]