778879719

素因数分解:

$3^4\times {\mathrm{83}}^1\times {\mathrm{115853}}^1$

素因数の和:115948

約数の個数: 20

約数和(自身を含む): 1177540056

約数和(自身を除く): 398660337

約数列:

[1, 3, 9, 27, 81, 83, 249, 747, 2241, 6723, 115853, 347559, 1042677, 3128031, 9384093, 9615799, 28847397, 86542191, 259626573, 778879719]

約数ペア:

[(1, 778879719), (3, 259626573), (9, 86542191), (27, 28847397), (81, 9615799), (83, 9384093), (249, 3128031), (747, 1042677), (2241, 347559), (6723, 115853)]