20913806

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{409}}^1\times {\mathrm{691}}^1$

素因数の和:1139

約数の個数: 16

約数和(自身を含む): 32344080

約数和(自身を除く): 11430274

約数列:

[1, 2, 37, 74, 409, 691, 818, 1382, 15133, 25567, 30266, 51134, 282619, 565238, 10456903, 20913806]

約数ペア:

[(1, 20913806), (2, 10456903), (37, 565238), (74, 282619), (409, 51134), (691, 30266), (818, 25567), (1382, 15133)]