253989791

素因数分解:

${\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1\times {\mathrm{811}}^1$

素因数の和:1294

約数の個数: 16

約数和(自身を含む): 282030336

約数和(自身を除く): 28040545

約数列:

[1, 11, 71, 401, 781, 811, 4411, 8921, 28471, 57581, 313181, 325211, 633391, 3577321, 23089981, 253989791]

約数ペア:

[(1, 253989791), (11, 23089981), (71, 3577321), (401, 633391), (781, 325211), (811, 313181), (4411, 57581), (8921, 28471)]