1279563561

素因数分解:

$3^4\times {\mathrm{857}}^1\times {\mathrm{18433}}^1$

素因数の和:19302

約数の個数: 20

約数和(自身を含む): 1913781012

約数和(自身を除く): 634217451

約数列:

[1, 3, 9, 27, 81, 857, 2571, 7713, 18433, 23139, 55299, 69417, 165897, 497691, 1493073, 15797081, 47391243, 142173729, 426521187, 1279563561]

約数ペア:

[(1, 1279563561), (3, 426521187), (9, 142173729), (27, 47391243), (81, 15797081), (857, 1493073), (2571, 497691), (7713, 165897), (18433, 69417), (23139, 55299)]