278605917

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{436003}}^1$

素因数の和:436080

約数の個数: 12

約数和(自身を含む): 408099744

約数和(自身を除く): 129493827

約数列:

[1, 3, 9, 71, 213, 639, 436003, 1308009, 3924027, 30956213, 92868639, 278605917]

約数ペア:

[(1, 278605917), (3, 92868639), (9, 30956213), (71, 3924027), (213, 1308009), (639, 436003)]