12891291

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{32309}}^1$

素因数の和:32338

約数の個数: 16

約数和(自身を含む): 20678400

約数和(自身を除く): 7787109

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 32309, 96927, 226163, 613871, 678489, 1841613, 4297097, 12891291]

約数ペア:

[(1, 12891291), (3, 4297097), (7, 1841613), (19, 678489), (21, 613871), (57, 226163), (133, 96927), (399, 32309)]