19764205

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{2713}}^1$

素因数の和:2796

約数の個数: 16

約数和(自身を含む): 25012224

約数和(自身を除く): 5248019

約数列:

[1, 5, 31, 47, 155, 235, 1457, 2713, 7285, 13565, 84103, 127511, 420515, 637555, 3952841, 19764205]

約数ペア:

[(1, 19764205), (5, 3952841), (31, 637555), (47, 420515), (155, 127511), (235, 84103), (1457, 13565), (2713, 7285)]