19728873

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{16993}}^1$

素因数の和:17045

約数の個数: 16

約数和(自身を含む): 29909440

約数和(自身を除く): 10180567

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 16993, 50979, 152937, 458811, 730699, 2192097, 6576291, 19728873]

約数ペア:

[(1, 19728873), (3, 6576291), (9, 2192097), (27, 730699), (43, 458811), (129, 152937), (387, 50979), (1161, 16993)]