21591977

素因数分解:

${\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1\times {\mathrm{239}}^1$

素因数の和:484

約数の個数: 16

約数和(自身を含む): 24330240

約数和(自身を除く): 2738263

約数列:

[1, 11, 43, 191, 239, 473, 2101, 2629, 8213, 10277, 45649, 90343, 113047, 502139, 1962907, 21591977]

約数ペア:

[(1, 21591977), (11, 1962907), (43, 502139), (191, 113047), (239, 90343), (473, 45649), (2101, 10277), (2629, 8213)]