12780909

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{5441}}^1$

素因数の和:5482

約数の個数: 20

約数和(自身を含む): 19754460

約数和(自身を除く): 6973551

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 5441, 16323, 48969, 146907, 157789, 440721, 473367, 1420101, 4260303, 12780909]

約数ペア:

[(1, 12780909), (3, 4260303), (9, 1420101), (27, 473367), (29, 440721), (81, 157789), (87, 146907), (261, 48969), (783, 16323), (2349, 5441)]