12509861

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:225

約数の個数: 32

約数和(自身を含む): 16558080

約数和(自身を除く): 4048219

約数列:

[1, 7, 13, 23, 43, 91, 139, 161, 299, 301, 559, 973, 989, 1807, 2093, 3197, 3913, 5977, 6923, 12649, 12857, 22379, 41561, 41839, 77701, 89999, 137471, 290927, 543907, 962297, 1787123, 12509861]

約数ペア:

[(1, 12509861), (7, 1787123), (13, 962297), (23, 543907), (43, 290927), (91, 137471), (139, 89999), (161, 77701), (299, 41839), (301, 41561), (559, 22379), (973, 12857), (989, 12649), (1807, 6923), (2093, 5977), (3197, 3913)]