128202389

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{20327}}^1$

素因数の和:20404

約数の個数: 16

約数和(自身を含む): 158070528

約数和(自身を除く): 29868139

約数列:

[1, 7, 17, 53, 119, 371, 901, 6307, 20327, 142289, 345559, 1077331, 2418913, 7541317, 18314627, 128202389]

約数ペア:

[(1, 128202389), (7, 18314627), (17, 7541317), (53, 2418913), (119, 1077331), (371, 345559), (901, 142289), (6307, 20327)]