20913977

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{72871}}^1$

素因数の和:72919

約数の個数: 8

約数和(自身を含む): 24484992

約数和(自身を除く): 3571015

約数列:

[1, 7, 41, 287, 72871, 510097, 2987711, 20913977]

約数ペア:

[(1, 20913977), (7, 2987711), (41, 510097), (287, 72871)]