18820678

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{523}}^1\times {\mathrm{947}}^1$

素因数の和:1491

約数の個数: 16

約数和(自身を含む): 29805120

約数和(自身を除く): 10984442

約数列:

[1, 2, 19, 38, 523, 947, 1046, 1894, 9937, 17993, 19874, 35986, 495281, 990562, 9410339, 18820678]

約数ペア:

[(1, 18820678), (2, 9410339), (19, 990562), (38, 495281), (523, 35986), (947, 19874), (1046, 17993), (1894, 9937)]