18971204

素因数分解:

$2^2\times 7^1\times {\mathrm{677543}}^1$

素因数の和:677554

約数の個数: 12

約数和(自身を含む): 37942464

約数和(自身を除く): 18971260

約数列:

[1, 2, 4, 7, 14, 28, 677543, 1355086, 2710172, 4742801, 9485602, 18971204]

約数ペア:

[(1, 18971204), (2, 9485602), (4, 4742801), (7, 2710172), (14, 1355086), (28, 677543)]