20513784

素因数分解:

$2^3\times 3^1\times {\mathrm{397}}^1\times {\mathrm{2153}}^1$

素因数の和:2559

約数の個数: 32

約数和(自身を含む): 51437520

約数和(自身を除く): 30923736

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 397, 794, 1191, 1588, 2153, 2382, 3176, 4306, 4764, 6459, 8612, 9528, 12918, 17224, 25836, 51672, 854741, 1709482, 2564223, 3418964, 5128446, 6837928, 10256892, 20513784]

約数ペア:

[(1, 20513784), (2, 10256892), (3, 6837928), (4, 5128446), (6, 3418964), (8, 2564223), (12, 1709482), (24, 854741), (397, 51672), (794, 25836), (1191, 17224), (1588, 12918), (2153, 9528), (2382, 8612), (3176, 6459), (4306, 4764)]