638325571

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{2393}}^1$

素因数の和:2511

約数の個数: 24

約数和(自身を含む): 740837664

約数和(自身を除く): 102512093

約数列:

[1, 13, 17, 71, 221, 289, 923, 1207, 2393, 3757, 15691, 20519, 31109, 40681, 169903, 266747, 528853, 691577, 2208739, 2888351, 8990501, 37548563, 49101967, 638325571]

約数ペア:

[(1, 638325571), (13, 49101967), (17, 37548563), (71, 8990501), (221, 2888351), (289, 2208739), (923, 691577), (1207, 528853), (2393, 266747), (3757, 169903), (15691, 40681), (20519, 31109)]