257220357

素因数分解:

$3^1\times {\mathrm{163}}^1\times {\mathrm{229}}^1\times {\mathrm{2297}}^1$

素因数の和:2692

約数の個数: 16

約数和(自身を含む): 346722240

約数和(自身を除く): 89501883

約数列:

[1, 3, 163, 229, 489, 687, 2297, 6891, 37327, 111981, 374411, 526013, 1123233, 1578039, 85740119, 257220357]

約数ペア:

[(1, 257220357), (3, 85740119), (163, 1578039), (229, 1123233), (489, 526013), (687, 374411), (2297, 111981), (6891, 37327)]