1991231473

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{281}}^1\times {\mathrm{13147}}^1$

素因数の和:13453

約数の個数: 24

約数和(自身を含む): 2536091424

約数和(自身を除く): 544859951

約数列:

[1, 7, 11, 49, 77, 281, 539, 1967, 3091, 13147, 13769, 21637, 92029, 144617, 151459, 644203, 1012319, 3694307, 7086233, 25860149, 40637377, 181021043, 284461639, 1991231473]

約数ペア:

[(1, 1991231473), (7, 284461639), (11, 181021043), (49, 40637377), (77, 25860149), (281, 7086233), (539, 3694307), (1967, 1012319), (3091, 644203), (13147, 151459), (13769, 144617), (21637, 92029)]