20895655

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{5351}}^1$

素因数の和:5438

約数の個数: 16

約数和(自身を含む): 27744768

約数和(自身を除く): 6849113

約数列:

[1, 5, 11, 55, 71, 355, 781, 3905, 5351, 26755, 58861, 294305, 379921, 1899605, 4179131, 20895655]

約数ペア:

[(1, 20895655), (5, 4179131), (11, 1899605), (55, 379921), (71, 294305), (355, 58861), (781, 26755), (3905, 5351)]