21453173679

素因数分解:

$3^1\times 7^2\times {\mathrm{919}}^1\times {\mathrm{158803}}^1$

素因数の和:159739

約数の個数: 24

約数和(自身を含む): 33310727040

約数和(自身を除く): 11857553361

約数列:

[1, 3, 7, 21, 49, 147, 919, 2757, 6433, 19299, 45031, 135093, 158803, 476409, 1111621, 3334863, 7781347, 23344041, 145939957, 437819871, 1021579699, 3064739097, 7151057893, 21453173679]

約数ペア:

[(1, 21453173679), (3, 7151057893), (7, 3064739097), (21, 1021579699), (49, 437819871), (147, 145939957), (919, 23344041), (2757, 7781347), (6433, 3334863), (19299, 1111621), (45031, 476409), (135093, 158803)]