890265087

素因数分解:

$3^4\times {\mathrm{163}}^1\times {\mathrm{67429}}^1$

素因数の和:67604

約数の個数: 20

約数和(自身を含む): 1338080920

約数和(自身を除く): 447815833

約数列:

[1, 3, 9, 27, 81, 163, 489, 1467, 4401, 13203, 67429, 202287, 606861, 1820583, 5461749, 10990927, 32972781, 98918343, 296755029, 890265087]

約数ペア:

[(1, 890265087), (3, 296755029), (9, 98918343), (27, 32972781), (81, 10990927), (163, 5461749), (489, 1820583), (1467, 606861), (4401, 202287), (13203, 67429)]