18728919

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{5113}}^1$

素因数の和:5167

約数の個数: 24

約数和(自身を含む): 30315792

約数和(自身を除く): 11586873

約数列:

[1, 3, 9, 11, 33, 37, 99, 111, 333, 407, 1221, 3663, 5113, 15339, 46017, 56243, 168729, 189181, 506187, 567543, 1702629, 2080991, 6242973, 18728919]

約数ペア:

[(1, 18728919), (3, 6242973), (9, 2080991), (11, 1702629), (33, 567543), (37, 506187), (99, 189181), (111, 168729), (333, 56243), (407, 46017), (1221, 15339), (3663, 5113)]