257132351

素因数分解:

$7^3\times {\mathrm{37}}^1\times {\mathrm{20261}}^1$

素因数の和:20319

約数の個数: 16

約数和(自身を含む): 307982400

約数和(自身を除く): 50850049

約数列:

[1, 7, 37, 49, 259, 343, 1813, 12691, 20261, 141827, 749657, 992789, 5247599, 6949523, 36733193, 257132351]

約数ペア:

[(1, 257132351), (7, 36733193), (37, 6949523), (49, 5247599), (259, 992789), (343, 749657), (1813, 141827), (12691, 20261)]