21191119874

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{571}}^1\times {\mathrm{806789}}^1$

素因数の和:807385

約数の個数: 16

約数和(自身を含む): 33226839360

約数和(自身を除く): 12035719486

約数列:

[1, 2, 23, 46, 571, 1142, 13133, 26266, 806789, 1613578, 18556147, 37112294, 460676519, 921353038, 10595559937, 21191119874]

約数ペア:

[(1, 21191119874), (2, 10595559937), (23, 921353038), (46, 460676519), (571, 37112294), (1142, 18556147), (13133, 1613578), (26266, 806789)]