21149942

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{5557}}^1$

素因数の和:5743

約数の個数: 16

約数和(自身を含む): 34815312

約数和(自身を除く): 13665370

約数列:

[1, 2, 11, 22, 173, 346, 1903, 3806, 5557, 11114, 61127, 122254, 961361, 1922722, 10574971, 21149942]

約数ペア:

[(1, 21149942), (2, 10574971), (11, 1922722), (22, 961361), (173, 122254), (346, 61127), (1903, 11114), (3806, 5557)]