25139889

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{18257}}^1$

素因数の和:18286

約数の個数: 20

約数和(自身を含む): 39765924

約数和(自身を除く): 14626035

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 18257, 54771, 164313, 310369, 492939, 931107, 1478817, 2793321, 8379963, 25139889]

約数ペア:

[(1, 25139889), (3, 8379963), (9, 2793321), (17, 1478817), (27, 931107), (51, 492939), (81, 310369), (153, 164313), (459, 54771), (1377, 18257)]