78964389

素因数分解:

$3^4\times 7^1\times {\mathrm{139267}}^1$

素因数の和:139286

約数の個数: 20

約数和(自身を含む): 134811424

約数和(自身を除く): 55847035

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 139267, 417801, 974869, 1253403, 2924607, 3760209, 8773821, 11280627, 26321463, 78964389]

約数ペア:

[(1, 78964389), (3, 26321463), (7, 11280627), (9, 8773821), (21, 3760209), (27, 2924607), (63, 1253403), (81, 974869), (189, 417801), (567, 139267)]