13881051

素因数分解:

$3^4\times {\mathrm{409}}^1\times {\mathrm{419}}^1$

素因数の和:840

約数の個数: 20

約数和(自身を含む): 20836200

約数和(自身を除く): 6955149

約数列:

[1, 3, 9, 27, 81, 409, 419, 1227, 1257, 3681, 3771, 11043, 11313, 33129, 33939, 171371, 514113, 1542339, 4627017, 13881051]

約数ペア:

[(1, 13881051), (3, 4627017), (9, 1542339), (27, 514113), (81, 171371), (409, 33939), (419, 33129), (1227, 11313), (1257, 11043), (3681, 3771)]