20741787

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{11027}}^1$

素因数の和:11063

約数の個数: 24

約数和(自身を含む): 34407360

約数和(自身を除く): 13665573

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 171, 209, 627, 1881, 11027, 33081, 99243, 121297, 209513, 363891, 628539, 1091673, 1885617, 2304643, 6913929, 20741787]

約数ペア:

[(1, 20741787), (3, 6913929), (9, 2304643), (11, 1885617), (19, 1091673), (33, 628539), (57, 363891), (99, 209513), (171, 121297), (209, 99243), (627, 33081), (1881, 11027)]