128676877

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{9721}}^1$

素因数の和:9820

約数の個数: 16

約数和(自身を含む): 154307584

約数和(自身を除く): 25630707

約数列:

[1, 7, 31, 61, 217, 427, 1891, 9721, 13237, 68047, 301351, 592981, 2109457, 4150867, 18382411, 128676877]

約数ペア:

[(1, 128676877), (7, 18382411), (31, 4150867), (61, 2109457), (217, 592981), (427, 301351), (1891, 68047), (9721, 13237)]