18767216

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{90227}}^1$

素因数の和:90248

約数の個数: 20

約数和(自身を含む): 39158952

約数和(自身を除く): 20391736

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 90227, 180454, 360908, 721816, 1172951, 1443632, 2345902, 4691804, 9383608, 18767216]

約数ペア:

[(1, 18767216), (2, 9383608), (4, 4691804), (8, 2345902), (13, 1443632), (16, 1172951), (26, 721816), (52, 360908), (104, 180454), (208, 90227)]