78890013

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{515621}}^1$

素因数の和:515644

約数の個数: 12

約数和(自身を含む): 120655548

約数和(自身を除く): 41765535

約数列:

[1, 3, 9, 17, 51, 153, 515621, 1546863, 4640589, 8765557, 26296671, 78890013]

約数ペア:

[(1, 78890013), (3, 26296671), (9, 8765557), (17, 4640589), (51, 1546863), (153, 515621)]