247242457

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1\times {\mathrm{193}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 314671104

約数和(自身を除く): 67428647

約数列:

[1, 7, 11, 77, 127, 131, 193, 889, 917, 1351, 1397, 1441, 2123, 9779, 10087, 14861, 16637, 24511, 25283, 116459, 171577, 176981, 183007, 269621, 278113, 1281049, 1887347, 1946791, 3210941, 22476587, 35320351, 247242457]

約数ペア:

[(1, 247242457), (7, 35320351), (11, 22476587), (77, 3210941), (127, 1946791), (131, 1887347), (193, 1281049), (889, 278113), (917, 269621), (1351, 183007), (1397, 176981), (1441, 171577), (2123, 116459), (9779, 25283), (10087, 24511), (14861, 16637)]