21978092

素因数分解:

$2^2\times {\mathrm{1117}}^1\times {\mathrm{4919}}^1$

素因数の和:6040

約数の個数: 12

約数和(自身を含む): 38503920

約数和(自身を除く): 16525828

約数列:

[1, 2, 4, 1117, 2234, 4468, 4919, 9838, 19676, 5494523, 10989046, 21978092]

約数ペア:

[(1, 21978092), (2, 10989046), (4, 5494523), (1117, 19676), (2234, 9838), (4468, 4919)]