8778321

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{7561}}^1$

素因数の和:7613

約数の個数: 16

約数和(自身を含む): 13309120

約数和(自身を除く): 4530799

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 7561, 22683, 68049, 204147, 325123, 975369, 2926107, 8778321]

約数ペア:

[(1, 8778321), (3, 2926107), (9, 975369), (27, 325123), (43, 204147), (129, 68049), (387, 22683), (1161, 7561)]