18639088

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{89611}}^1$

素因数の和:89632

約数の個数: 20

約数和(自身を含む): 38891608

約数和(自身を除く): 20252520

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 89611, 179222, 358444, 716888, 1164943, 1433776, 2329886, 4659772, 9319544, 18639088]

約数ペア:

[(1, 18639088), (2, 9319544), (4, 4659772), (8, 2329886), (13, 1433776), (16, 1164943), (26, 716888), (52, 358444), (104, 179222), (208, 89611)]