21031720196

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{122277443}}^1$

素因数の和:122277490

約数の個数: 12

約数和(自身を含む): 37661452752

約数和(自身を除く): 16629732556

約数列:

[1, 2, 4, 43, 86, 172, 122277443, 244554886, 489109772, 5257930049, 10515860098, 21031720196]

約数ペア:

[(1, 21031720196), (2, 10515860098), (4, 5257930049), (43, 489109772), (86, 244554886), (172, 122277443)]