12873987

素因数分解:

$3^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{1129}}^1$

素因数の和:1323

約数の個数: 24

約数和(自身を含む): 21388640

約数和(自身を除く): 8514653

約数列:

[1, 3, 7, 9, 21, 63, 181, 543, 1129, 1267, 1629, 3387, 3801, 7903, 10161, 11403, 23709, 71127, 204349, 613047, 1430443, 1839141, 4291329, 12873987]

約数ペア:

[(1, 12873987), (3, 4291329), (7, 1839141), (9, 1430443), (21, 613047), (63, 204349), (181, 71127), (543, 23709), (1129, 11403), (1267, 10161), (1629, 7903), (3387, 3801)]