18781972

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{426863}}^1$

素因数の和:426878

約数の個数: 12

約数和(自身を含む): 35856576

約数和(自身を除く): 17074604

約数列:

[1, 2, 4, 11, 22, 44, 426863, 853726, 1707452, 4695493, 9390986, 18781972]

約数ペア:

[(1, 18781972), (2, 9390986), (4, 4695493), (11, 1707452), (22, 853726), (44, 426863)]