20801975878

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{4073}}^1\times {\mathrm{41863}}^1$

素因数の和:45999

約数の個数: 16

約数和(自身を含む): 31723032096

約数和(自身を除く): 10921056218

約数列:

[1, 2, 61, 122, 4073, 8146, 41863, 83726, 248453, 496906, 2553643, 5107286, 170507999, 341015998, 10400987939, 20801975878]

約数ペア:

[(1, 20801975878), (2, 10400987939), (61, 341015998), (122, 170507999), (4073, 5107286), (8146, 2553643), (41863, 496906), (83726, 248453)]