18331989

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{191}}^1$

素因数の和:337

約数の個数: 32

約数和(自身を含む): 27869184

約数和(自身を除く): 9537195

約数列:

[1, 3, 13, 23, 39, 69, 107, 191, 299, 321, 573, 897, 1391, 2461, 2483, 4173, 4393, 7383, 7449, 13179, 20437, 31993, 57109, 61311, 95979, 171327, 265681, 470051, 797043, 1410153, 6110663, 18331989]

約数ペア:

[(1, 18331989), (3, 6110663), (13, 1410153), (23, 797043), (39, 470051), (69, 265681), (107, 171327), (191, 95979), (299, 61311), (321, 57109), (573, 31993), (897, 20437), (1391, 13179), (2461, 7449), (2483, 7383), (4173, 4393)]