18685293

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{4133}}^1$

素因数の和:4284

約数の個数: 16

約数和(自身を含む): 27383616

約数和(自身を除く): 8698323

約数列:

[1, 3, 11, 33, 137, 411, 1507, 4133, 4521, 12399, 45463, 136389, 566221, 1698663, 6228431, 18685293]

約数ペア:

[(1, 18685293), (3, 6228431), (11, 1698663), (33, 566221), (137, 136389), (411, 45463), (1507, 12399), (4133, 4521)]