2021559905

素因数分解:

$5^1\times {\mathrm{131}}^1\times {\mathrm{421}}^1\times {\mathrm{7331}}^1$

素因数の和:7888

約数の個数: 16

約数和(自身を含む): 2450530368

約数和(自身を除く): 428970463

約数列:

[1, 5, 131, 421, 655, 2105, 7331, 36655, 55151, 275755, 960361, 3086351, 4801805, 15431755, 404311981, 2021559905]

約数ペア:

[(1, 2021559905), (5, 404311981), (131, 15431755), (421, 4801805), (655, 3086351), (2105, 960361), (7331, 275755), (36655, 55151)]