21009041

素因数分解:

${\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{673}}^1$

素因数の和:776

約数の個数: 16

約数和(自身を含む): 23293440

約数和(自身を除く): 2284399

約数列:

[1, 19, 31, 53, 589, 673, 1007, 1643, 12787, 20863, 31217, 35669, 396397, 677711, 1105739, 21009041]

約数ペア:

[(1, 21009041), (19, 1105739), (31, 677711), (53, 396397), (589, 35669), (673, 31217), (1007, 20863), (1643, 12787)]