31810689

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{809}}^1$

素因数の和:1089

約数の個数: 24

約数和(自身を含む): 48901320

約数和(自身を除く): 17090631

約数列:

[1, 3, 9, 17, 51, 153, 257, 771, 809, 2313, 2427, 4369, 7281, 13107, 13753, 39321, 41259, 123777, 207913, 623739, 1871217, 3534521, 10603563, 31810689]

約数ペア:

[(1, 31810689), (3, 10603563), (9, 3534521), (17, 1871217), (51, 623739), (153, 207913), (257, 123777), (771, 41259), (809, 39321), (2313, 13753), (2427, 13107), (4369, 7281)]