19638754

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{1723}}^1$

素因数の和:1905

約数の個数: 16

約数和(自身を含む): 30411360

約数和(自身を除く): 10772606

約数列:

[1, 2, 41, 82, 139, 278, 1723, 3446, 5699, 11398, 70643, 141286, 239497, 478994, 9819377, 19638754]

約数ペア:

[(1, 19638754), (2, 9819377), (41, 478994), (82, 239497), (139, 141286), (278, 70643), (1723, 11398), (3446, 5699)]