20998252

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{3643}}^1$

素因数の和:3789

約数の個数: 24

約数和(自身を含む): 40404672

約数和(自身を除く): 19406420

約数列:

[1, 2, 4, 11, 22, 44, 131, 262, 524, 1441, 2882, 3643, 5764, 7286, 14572, 40073, 80146, 160292, 477233, 954466, 1908932, 5249563, 10499126, 20998252]

約数ペア:

[(1, 20998252), (2, 10499126), (4, 5249563), (11, 1908932), (22, 954466), (44, 477233), (131, 160292), (262, 80146), (524, 40073), (1441, 14572), (2882, 7286), (3643, 5764)]