25502491

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{163}}^1$

素因数の和:311

約数の個数: 24

約数和(自身を含む): 31110144

約数和(自身を除く): 5607653

約数列:

[1, 7, 31, 49, 103, 163, 217, 721, 1141, 1519, 3193, 5047, 5053, 7987, 16789, 22351, 35371, 117523, 156457, 247597, 520459, 822661, 3643213, 25502491]

約数ペア:

[(1, 25502491), (7, 3643213), (31, 822661), (49, 520459), (103, 247597), (163, 156457), (217, 117523), (721, 35371), (1141, 22351), (1519, 16789), (3193, 7987), (5047, 5053)]