21221769

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{2551}}^1$

素因数の和:2660

約数の個数: 16

約数和(自身を含む): 29399040

約数和(自身を除く): 8177271

約数列:

[1, 3, 47, 59, 141, 177, 2551, 2773, 7653, 8319, 119897, 150509, 359691, 451527, 7073923, 21221769]

約数ペア:

[(1, 21221769), (3, 7073923), (47, 451527), (59, 359691), (141, 150509), (177, 119897), (2551, 8319), (2773, 7653)]