19712619

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{16979}}^1$

素因数の和:17031

約数の個数: 16

約数和(自身を含む): 29884800

約数和(自身を除く): 10172181

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 16979, 50937, 152811, 458433, 730097, 2190291, 6570873, 19712619]

約数ペア:

[(1, 19712619), (3, 6570873), (9, 2190291), (27, 730097), (43, 458433), (129, 152811), (387, 50937), (1161, 16979)]