19154894

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{3643}}^1$

素因数の和:3895

約数の個数: 16

約数和(自身を含む): 31484160

約数和(自身を除く): 12329266

約数列:

[1, 2, 11, 22, 239, 478, 2629, 3643, 5258, 7286, 40073, 80146, 870677, 1741354, 9577447, 19154894]

約数ペア:

[(1, 19154894), (2, 9577447), (11, 1741354), (22, 870677), (239, 80146), (478, 40073), (2629, 7286), (3643, 5258)]