21015436

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{1459}}^1$

素因数の和:1753

約数の個数: 24

約数和(自身を含む): 39776240

約数和(自身を除く): 18760804

約数列:

[1, 2, 4, 13, 26, 52, 277, 554, 1108, 1459, 2918, 3601, 5836, 7202, 14404, 18967, 37934, 75868, 404143, 808286, 1616572, 5253859, 10507718, 21015436]

約数ペア:

[(1, 21015436), (2, 10507718), (4, 5253859), (13, 1616572), (26, 808286), (52, 404143), (277, 75868), (554, 37934), (1108, 18967), (1459, 14404), (2918, 7202), (3601, 5836)]