21280141

素因数分解:

${\mathrm{17}}^1\times {\mathrm{43}}^2\times {\mathrm{677}}^1$

素因数の和:780

約数の個数: 12

約数和(自身を含む): 23102172

約数和(自身を除く): 1822031

約数列:

[1, 17, 43, 677, 731, 1849, 11509, 29111, 31433, 494887, 1251773, 21280141]

約数ペア:

[(1, 21280141), (17, 1251773), (43, 494887), (677, 31433), (731, 29111), (1849, 11509)]