20781756

素因数分解:

$2^2\times 3^2\times {\mathrm{577271}}^1$

素因数の和:577281

約数の個数: 18

約数和(自身を含む): 52531752

約数和(自身を除く): 31749996

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 577271, 1154542, 1731813, 2309084, 3463626, 5195439, 6927252, 10390878, 20781756]

約数ペア:

[(1, 20781756), (2, 10390878), (3, 6927252), (4, 5195439), (6, 3463626), (9, 2309084), (12, 1731813), (18, 1154542), (36, 577271)]