20129371191

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{6195559}}^1$

素因数の和:6195603

約数の個数: 18

約数和(自身を含む): 30686608680

約数和(自身を除く): 10557237489

約数列:

[1, 3, 9, 19, 57, 171, 361, 1083, 3249, 6195559, 18586677, 55760031, 117715621, 353146863, 1059440589, 2236596799, 6709790397, 20129371191]

約数ペア:

[(1, 20129371191), (3, 6709790397), (9, 2236596799), (19, 1059440589), (57, 353146863), (171, 117715621), (361, 55760031), (1083, 18586677), (3249, 6195559)]