2247304787

素因数分解:

$7^4\times {\mathrm{13}}^1\times {\mathrm{71999}}^1$

素因数の和:72040

約数の個数: 20

約数和(自身を含む): 2823408000

約数和(自身を除く): 576103213

約数列:

[1, 7, 13, 49, 91, 343, 637, 2401, 4459, 31213, 71999, 503993, 935987, 3527951, 6551909, 24695657, 45863363, 172869599, 321043541, 2247304787]

約数ペア:

[(1, 2247304787), (7, 321043541), (13, 172869599), (49, 45863363), (91, 24695657), (343, 6551909), (637, 3527951), (2401, 935987), (4459, 503993), (31213, 71999)]