281072571

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{263}}^1\times {\mathrm{409}}^1$

素因数の和:755

約数の個数: 32

約数和(自身を含む): 412177920

約数和(自身を除く): 131105349

約数列:

[1, 3, 13, 39, 67, 201, 263, 409, 789, 871, 1227, 2613, 3419, 5317, 10257, 15951, 17621, 27403, 52863, 82209, 107567, 229073, 322701, 356239, 687219, 1068717, 1398371, 4195113, 7206989, 21620967, 93690857, 281072571]

約数ペア:

[(1, 281072571), (3, 93690857), (13, 21620967), (39, 7206989), (67, 4195113), (201, 1398371), (263, 1068717), (409, 687219), (789, 356239), (871, 322701), (1227, 229073), (2613, 107567), (3419, 82209), (5317, 52863), (10257, 27403), (15951, 17621)]