21951590

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{129127}}^1$

素因数の和:129151

約数の個数: 16

約数和(自身を含む): 41837472

約数和(自身を除く): 19885882

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 129127, 258254, 645635, 1291270, 2195159, 4390318, 10975795, 21951590]

約数ペア:

[(1, 21951590), (2, 10975795), (5, 4390318), (10, 2195159), (17, 1291270), (34, 645635), (85, 258254), (170, 129127)]