257888969

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{9013}}^1$

素因数の和:9128

約数の個数: 16

約数和(自身を含む): 290755584

約数和(自身を除く): 32866615

約数列:

[1, 13, 31, 71, 403, 923, 2201, 9013, 28613, 117169, 279403, 639923, 3632239, 8318999, 19837613, 257888969]

約数ペア:

[(1, 257888969), (13, 19837613), (31, 8318999), (71, 3632239), (403, 639923), (923, 279403), (2201, 117169), (9013, 28613)]