20618983

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{809}}^1$

素因数の和:1158

約数の個数: 16

約数和(自身を含む): 25816320

約数和(自身を除く): 5197337

約数列:

[1, 7, 11, 77, 331, 809, 2317, 3641, 5663, 8899, 25487, 62293, 267779, 1874453, 2945569, 20618983]

約数ペア:

[(1, 20618983), (7, 2945569), (11, 1874453), (77, 267779), (331, 62293), (809, 25487), (2317, 8899), (3641, 5663)]