217254191

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{3767}}^1$

素因数の和:3899

約数の個数: 24

約数和(自身を含む): 278349696

約数和(自身を除く): 61095505

約数列:

[1, 7, 11, 49, 77, 107, 539, 749, 1177, 3767, 5243, 8239, 26369, 41437, 57673, 184583, 290059, 403069, 2030413, 2821483, 4433759, 19750381, 31036313, 217254191]

約数ペア:

[(1, 217254191), (7, 31036313), (11, 19750381), (49, 4433759), (77, 2821483), (107, 2030413), (539, 403069), (749, 290059), (1177, 184583), (3767, 57673), (5243, 41437), (8239, 26369)]