18615493

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{643}}^1$

素因数の和:804

約数の個数: 16

約数和(自身を含む): 21422016

約数和(自身を除く): 2806523

約数列:

[1, 13, 17, 131, 221, 643, 1703, 2227, 8359, 10931, 28951, 84233, 142103, 1095029, 1431961, 18615493]

約数ペア:

[(1, 18615493), (13, 1431961), (17, 1095029), (131, 142103), (221, 84233), (643, 28951), (1703, 10931), (2227, 8359)]