257029487

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{193}}^1$

素因数の和:423

約数の個数: 32

約数和(自身を含む): 310275840

約数和(自身を除く): 53246353

約数列:

[1, 11, 13, 67, 139, 143, 193, 737, 871, 1529, 1807, 2123, 2509, 9313, 9581, 12931, 19877, 26827, 27599, 102443, 121069, 142241, 168103, 295097, 348751, 1331759, 1797409, 1849133, 3836261, 19771499, 23366317, 257029487]

約数ペア:

[(1, 257029487), (11, 23366317), (13, 19771499), (67, 3836261), (139, 1849133), (143, 1797409), (193, 1331759), (737, 348751), (871, 295097), (1529, 168103), (1807, 142241), (2123, 121069), (2509, 102443), (9313, 27599), (9581, 26827), (12931, 19877)]