19698590

素因数分解:

$2^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{4679}}^1$

素因数の和:5107

約数の個数: 16

約数和(自身を含む): 35549280

約数和(自身を除く): 15850690

約数列:

[1, 2, 5, 10, 421, 842, 2105, 4210, 4679, 9358, 23395, 46790, 1969859, 3939718, 9849295, 19698590]

約数ペア:

[(1, 19698590), (2, 9849295), (5, 3939718), (10, 1969859), (421, 46790), (842, 23395), (2105, 9358), (4210, 4679)]