689942

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{2851}}^1$

素因数の和:2875

約数の個数: 12

約数和(自身を含む): 1137948

約数和(自身を除く): 448006

約数列:

[1, 2, 11, 22, 121, 242, 2851, 5702, 31361, 62722, 344971, 689942]

約数ペア:

[(1, 689942), (2, 344971), (11, 62722), (22, 31361), (121, 5702), (242, 2851)]