19911514

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61837}}^1$

素因数の和:61869

約数の個数: 16

約数和(自身を含む): 35618688

約数和(自身を除く): 15707174

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 61837, 123674, 432859, 865718, 1422251, 2844502, 9955757, 19911514]

約数ペア:

[(1, 19911514), (2, 9955757), (7, 2844502), (14, 1422251), (23, 865718), (46, 432859), (161, 123674), (322, 61837)]