16520907

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^2$

素因数の和:267

約数の個数: 24

約数和(自身を含む): 24593296

約数和(自身を除く): 8072389

約数列:

[1, 3, 13, 37, 39, 107, 111, 321, 481, 1391, 1443, 3959, 4173, 11449, 11877, 34347, 51467, 148837, 154401, 423613, 446511, 1270839, 5506969, 16520907]

約数ペア:

[(1, 16520907), (3, 5506969), (13, 1270839), (37, 446511), (39, 423613), (107, 154401), (111, 148837), (321, 51467), (481, 34347), (1391, 11877), (1443, 11449), (3959, 4173)]