18188144

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{87443}}^1$

素因数の和:87464

約数の個数: 20

約数和(自身を含む): 37950696

約数和(自身を除く): 19762552

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 87443, 174886, 349772, 699544, 1136759, 1399088, 2273518, 4547036, 9094072, 18188144]

約数ペア:

[(1, 18188144), (2, 9094072), (4, 4547036), (8, 2273518), (13, 1399088), (16, 1136759), (26, 699544), (52, 349772), (104, 174886), (208, 87443)]