21075009

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{11927}}^1$

素因数の和:11980

約数の個数: 16

約数和(自身を含む): 30535680

約数和(自身を除く): 9460671

約数列:

[1, 3, 19, 31, 57, 93, 589, 1767, 11927, 35781, 226613, 369737, 679839, 1109211, 7025003, 21075009]

約数ペア:

[(1, 21075009), (3, 7025003), (19, 1109211), (31, 679839), (57, 369737), (93, 226613), (589, 35781), (1767, 11927)]