18991666

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{281}}^1\times {\mathrm{719}}^1$

素因数の和:1049

約数の個数: 16

約数和(自身を含む): 29237760

約数和(自身を除く): 10246094

約数列:

[1, 2, 47, 94, 281, 562, 719, 1438, 13207, 26414, 33793, 67586, 202039, 404078, 9495833, 18991666]

約数ペア:

[(1, 18991666), (2, 9495833), (47, 404078), (94, 202039), (281, 67586), (562, 33793), (719, 26414), (1438, 13207)]