211054825

素因数分解:

$5^2\times {\mathrm{107}}^1\times {\mathrm{257}}^1\times {\mathrm{307}}^1$

素因数の和:681

約数の個数: 24

約数和(自身を含む): 266045472

約数和(自身を除く): 54990647

約数列:

[1, 5, 25, 107, 257, 307, 535, 1285, 1535, 2675, 6425, 7675, 27499, 32849, 78899, 137495, 164245, 394495, 687475, 821225, 1972475, 8442193, 42210965, 211054825]

約数ペア:

[(1, 211054825), (5, 42210965), (25, 8442193), (107, 1972475), (257, 821225), (307, 687475), (535, 394495), (1285, 164245), (1535, 137495), (2675, 78899), (6425, 32849), (7675, 27499)]