20738894

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{5449}}^1$

素因数の和:5635

約数の個数: 16

約数和(自身を含む): 34138800

約数和(自身を除く): 13399906

約数列:

[1, 2, 11, 22, 173, 346, 1903, 3806, 5449, 10898, 59939, 119878, 942677, 1885354, 10369447, 20738894]

約数ペア:

[(1, 20738894), (2, 10369447), (11, 1885354), (22, 942677), (173, 119878), (346, 59939), (1903, 10898), (3806, 5449)]