21870321

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{22853}}^1$

素因数の和:22896

約数の個数: 16

約数和(自身を含む): 32909760

約数和(自身を除く): 11039439

約数列:

[1, 3, 11, 29, 33, 87, 319, 957, 22853, 68559, 251383, 662737, 754149, 1988211, 7290107, 21870321]

約数ペア:

[(1, 21870321), (3, 7290107), (11, 1988211), (29, 754149), (33, 662737), (87, 251383), (319, 68559), (957, 22853)]