20643388

素因数分解:

$2^2\times {\mathrm{613}}^1\times {\mathrm{8419}}^1$

素因数の和:9036

約数の個数: 12

約数和(自身を含む): 36189160

約数和(自身を除く): 15545772

約数列:

[1, 2, 4, 613, 1226, 2452, 8419, 16838, 33676, 5160847, 10321694, 20643388]

約数ペア:

[(1, 20643388), (2, 10321694), (4, 5160847), (613, 33676), (1226, 16838), (2452, 8419)]