18556502013

素因数分解:

$3^2\times 7^1\times {\mathrm{1087}}^1\times {\mathrm{270973}}^1$

素因数の和:272073

約数の個数: 24

約数和(自身を含む): 30661250048

約数和(自身を除く): 12104748035

約数列:

[1, 3, 7, 9, 21, 63, 1087, 3261, 7609, 9783, 22827, 68481, 270973, 812919, 1896811, 2438757, 5690433, 17071299, 294547651, 883642953, 2061833557, 2650928859, 6185500671, 18556502013]

約数ペア:

[(1, 18556502013), (3, 6185500671), (7, 2650928859), (9, 2061833557), (21, 883642953), (63, 294547651), (1087, 17071299), (3261, 5690433), (7609, 2438757), (9783, 1896811), (22827, 812919), (68481, 270973)]