42121287

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{521}}^1\times {\mathrm{691}}^1$

素因数の和:1231

約数の個数: 24

約数和(自身を含む): 65742768

約数和(自身を除く): 23621481

約数列:

[1, 3, 9, 13, 39, 117, 521, 691, 1563, 2073, 4689, 6219, 6773, 8983, 20319, 26949, 60957, 80847, 360011, 1080033, 3240099, 4680143, 14040429, 42121287]

約数ペア:

[(1, 42121287), (3, 14040429), (9, 4680143), (13, 3240099), (39, 1080033), (117, 360011), (521, 80847), (691, 60957), (1563, 26949), (2073, 20319), (4689, 8983), (6219, 6773)]