12538855

素因数分解:

$5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{839}}^1$

素因数の和:919

約数の個数: 24

約数和(自身を含む): 17811360

約数和(自身を除く): 5272505

約数列:

[1, 5, 7, 35, 49, 61, 245, 305, 427, 839, 2135, 2989, 4195, 5873, 14945, 29365, 41111, 51179, 205555, 255895, 358253, 1791265, 2507771, 12538855]

約数ペア:

[(1, 12538855), (5, 2507771), (7, 1791265), (35, 358253), (49, 255895), (61, 205555), (245, 51179), (305, 41111), (427, 29365), (839, 14945), (2135, 5873), (2989, 4195)]