21868887

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{271}}^1\times {\mathrm{727}}^1$

素因数の和:1038

約数の個数: 16

約数和(自身を含む): 30098432

約数和(自身を除く): 8229545

約数列:

[1, 3, 37, 111, 271, 727, 813, 2181, 10027, 26899, 30081, 80697, 197017, 591051, 7289629, 21868887]

約数ペア:

[(1, 21868887), (3, 7289629), (37, 591051), (111, 197017), (271, 80697), (727, 30081), (813, 26899), (2181, 10027)]