19705855

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{1931}}^1$

素因数の和:2106

約数の個数: 16

約数和(自身を含む): 25641504

約数和(自身を除く): 5935649

約数列:

[1, 5, 13, 65, 157, 785, 1931, 2041, 9655, 10205, 25103, 125515, 303167, 1515835, 3941171, 19705855]

約数ペア:

[(1, 19705855), (5, 3941171), (13, 1515835), (65, 303167), (157, 125515), (785, 25103), (1931, 10205), (2041, 9655)]