78081921

素因数分解:

$3^3\times {\mathrm{1259}}^1\times {\mathrm{2297}}^1$

素因数の和:3565

約数の個数: 16

約数和(自身を含む): 115819200

約数和(自身を除く): 37737279

約数列:

[1, 3, 9, 27, 1259, 2297, 3777, 6891, 11331, 20673, 33993, 62019, 2891923, 8675769, 26027307, 78081921]

約数ペア:

[(1, 78081921), (3, 26027307), (9, 8675769), (27, 2891923), (1259, 62019), (2297, 33993), (3777, 20673), (6891, 11331)]