20521456

素因数分解:

$2^4\times {\mathrm{607}}^1\times {\mathrm{2113}}^1$

素因数の和:2728

約数の個数: 20

約数和(自身を含む): 39844672

約数和(自身を除く): 19323216

約数列:

[1, 2, 4, 8, 16, 607, 1214, 2113, 2428, 4226, 4856, 8452, 9712, 16904, 33808, 1282591, 2565182, 5130364, 10260728, 20521456]

約数ペア:

[(1, 20521456), (2, 10260728), (4, 5130364), (8, 2565182), (16, 1282591), (607, 33808), (1214, 16904), (2113, 9712), (2428, 8452), (4226, 4856)]