21212607

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{28627}}^1$

素因数の和:28662

約数の個数: 16

約数和(自身を含む): 32063360

約数和(自身を除く): 10850753

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 28627, 85881, 372151, 543913, 1116453, 1631739, 7070869, 21212607]

約数ペア:

[(1, 21212607), (3, 7070869), (13, 1631739), (19, 1116453), (39, 543913), (57, 372151), (247, 85881), (741, 28627)]