21241286

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{5581}}^1$

素因数の和:5767

約数の個数: 16

約数和(自身を含む): 34965648

約数和(自身を除く): 13724362

約数列:

[1, 2, 11, 22, 173, 346, 1903, 3806, 5581, 11162, 61391, 122782, 965513, 1931026, 10620643, 21241286]

約数ペア:

[(1, 21241286), (2, 10620643), (11, 1931026), (22, 965513), (173, 122782), (346, 61391), (1903, 11162), (3806, 5581)]