7219121

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{1619}}^1$

素因数の和:1653

約数の個数: 16

約数和(自身を含む): 9072000

約数和(自身を除く): 1852879

約数列:

[1, 7, 13, 49, 91, 343, 637, 1619, 4459, 11333, 21047, 79331, 147329, 555317, 1031303, 7219121]

約数ペア:

[(1, 7219121), (7, 1031303), (13, 555317), (49, 147329), (91, 79331), (343, 21047), (637, 11333), (1619, 4459)]