16981861

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1787}}^1$

素因数の和:1860

約数の個数: 16

約数和(自身を含む): 19825344

約数和(自身を除く): 2843483

約数列:

[1, 13, 17, 43, 221, 559, 731, 1787, 9503, 23231, 30379, 76841, 394927, 998933, 1306297, 16981861]

約数ペア:

[(1, 16981861), (13, 1306297), (17, 998933), (43, 394927), (221, 76841), (559, 30379), (731, 23231), (1787, 9503)]