18108961

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{1223}}^1$

素因数の和:1320

約数の個数: 16

約数和(自身を含む): 20974464

約数和(自身を除く): 2865503

約数列:

[1, 13, 17, 67, 221, 871, 1139, 1223, 14807, 15899, 20791, 81941, 270283, 1065233, 1392997, 18108961]

約数ペア:

[(1, 18108961), (13, 1392997), (17, 1065233), (67, 270283), (221, 81941), (871, 20791), (1139, 15899), (1223, 14807)]