25480721

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{1889}}^1$

素因数の和:1984

約数の個数: 16

約数和(自身を含む): 30481920

約数和(自身を除く): 5001199

約数列:

[1, 7, 41, 47, 287, 329, 1889, 1927, 13223, 13489, 77449, 88783, 542143, 621481, 3640103, 25480721]

約数ペア:

[(1, 25480721), (7, 3640103), (41, 621481), (47, 542143), (287, 88783), (329, 77449), (1889, 13489), (1927, 13223)]