18891743

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{1171}}^1$

素因数の和:1274

約数の個数: 16

約数和(自身を含む): 21855456

約数和(自身を除く): 2963713

約数列:

[1, 13, 17, 73, 221, 949, 1171, 1241, 15223, 16133, 19907, 85483, 258791, 1111279, 1453211, 18891743]

約数ペア:

[(1, 18891743), (13, 1453211), (17, 1111279), (73, 258791), (221, 85483), (949, 19907), (1171, 16133), (1241, 15223)]