20517872

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{67493}}^1$

素因数の和:67520

約数の個数: 20

約数和(自身を含む): 41846280

約数和(自身を除く): 21328408

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 67493, 134986, 269972, 539944, 1079888, 1282367, 2564734, 5129468, 10258936, 20517872]

約数ペア:

[(1, 20517872), (2, 10258936), (4, 5129468), (8, 2564734), (16, 1282367), (19, 1079888), (38, 539944), (76, 269972), (152, 134986), (304, 67493)]