78889371237

素因数分解:

$3^2\times {\mathrm{31}}^2\times {\mathrm{9121213}}^1$

素因数の和:9121281

約数の個数: 18

約数和(自身を含む): 117745751526

約数和(自身を除く): 38856380289

約数列:

[1, 3, 9, 31, 93, 279, 961, 2883, 8649, 9121213, 27363639, 82090917, 282757603, 848272809, 2544818427, 8765485693, 26296457079, 78889371237]

約数ペア:

[(1, 78889371237), (3, 26296457079), (9, 8765485693), (31, 2544818427), (93, 848272809), (279, 282757603), (961, 82090917), (2883, 27363639), (8649, 9121213)]