13211721

素因数分解:

$3^3\times {\mathrm{643}}^1\times {\mathrm{761}}^1$

素因数の和:1413

約数の個数: 16

約数和(自身を含む): 19629120

約数和(自身を除く): 6417399

約数列:

[1, 3, 9, 27, 643, 761, 1929, 2283, 5787, 6849, 17361, 20547, 489323, 1467969, 4403907, 13211721]

約数ペア:

[(1, 13211721), (3, 4403907), (9, 1467969), (27, 489323), (643, 20547), (761, 17361), (1929, 6849), (2283, 5787)]