20840798

素因数分解:

$2^1\times {\mathrm{11}}^3\times {\mathrm{7829}}^1$

素因数の和:7864

約数の個数: 16

約数和(自身を含む): 34389360

約数和(自身を除く): 13548562

約数列:

[1, 2, 11, 22, 121, 242, 1331, 2662, 7829, 15658, 86119, 172238, 947309, 1894618, 10420399, 20840798]

約数ペア:

[(1, 20840798), (2, 10420399), (11, 1894618), (22, 947309), (121, 172238), (242, 86119), (1331, 15658), (2662, 7829)]