257486398

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{210709}}^1$

素因数の和:210771

約数の個数: 16

約数和(自身を含む): 424791360

約数和(自身を除く): 167304962

約数列:

[1, 2, 13, 26, 47, 94, 611, 1222, 210709, 421418, 2739217, 5478434, 9903323, 19806646, 128743199, 257486398]

約数ペア:

[(1, 257486398), (2, 128743199), (13, 19806646), (26, 9903323), (47, 5478434), (94, 2739217), (611, 421418), (1222, 210709)]