18820336

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{61909}}^1$

素因数の和:61936

約数の個数: 20

約数和(自身を含む): 38384200

約数和(自身を除く): 19563864

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 61909, 123818, 247636, 495272, 990544, 1176271, 2352542, 4705084, 9410168, 18820336]

約数ペア:

[(1, 18820336), (2, 9410168), (4, 4705084), (8, 2352542), (16, 1176271), (19, 990544), (38, 495272), (76, 247636), (152, 123818), (304, 61909)]