257842846

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{20939}}^1$

素因数の和:21119

約数の個数: 16

約数和(自身を含む): 398027520

約数和(自身を除く): 140184674

約数列:

[1, 2, 47, 94, 131, 262, 6157, 12314, 20939, 41878, 984133, 1968266, 2743009, 5486018, 128921423, 257842846]

約数ペア:

[(1, 257842846), (2, 128921423), (47, 5486018), (94, 2743009), (131, 1968266), (262, 984133), (6157, 41878), (12314, 20939)]