21178049284

素因数分解:

$2^2\times 7^1\times {\mathrm{756358903}}^1$

素因数の和:756358914

約数の個数: 12

約数和(自身を含む): 42356098624

約数和(自身を除く): 21178049340

約数列:

[1, 2, 4, 7, 14, 28, 756358903, 1512717806, 3025435612, 5294512321, 10589024642, 21178049284]

約数ペア:

[(1, 21178049284), (2, 10589024642), (4, 5294512321), (7, 3025435612), (14, 1512717806), (28, 756358903)]