77678991

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{51071}}^1$

素因数の和:51103

約数の個数: 18

約数和(自身を含む): 121500288

約数和(自身を除く): 43821297

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 51071, 153213, 459639, 663923, 1991769, 5975307, 8630999, 25892997, 77678991]

約数ペア:

[(1, 77678991), (3, 25892997), (9, 8630999), (13, 5975307), (39, 1991769), (117, 663923), (169, 459639), (507, 153213), (1521, 51071)]