12909969

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{20789}}^1$

素因数の和:20821

約数の個数: 16

約数和(自身を含む): 19958400

約数和(自身を除く): 7048431

約数列:

[1, 3, 9, 23, 27, 69, 207, 621, 20789, 62367, 187101, 478147, 561303, 1434441, 4303323, 12909969]

約数ペア:

[(1, 12909969), (3, 4303323), (9, 1434441), (23, 561303), (27, 478147), (69, 187101), (207, 62367), (621, 20789)]