20666456

素因数分解:

$2^3\times {\mathrm{127}}^1\times {\mathrm{20341}}^1$

素因数の和:20474

約数の個数: 16

約数和(自身を含む): 39056640

約数和(自身を除く): 18390184

約数列:

[1, 2, 4, 8, 127, 254, 508, 1016, 20341, 40682, 81364, 162728, 2583307, 5166614, 10333228, 20666456]

約数ペア:

[(1, 20666456), (2, 10333228), (4, 5166614), (8, 2583307), (127, 162728), (254, 81364), (508, 40682), (1016, 20341)]