20557538

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{5657}}^1$

素因数の和:5761

約数の個数: 16

約数和(自身を含む): 32590080

約数和(自身を除く): 12032542

約数列:

[1, 2, 23, 46, 79, 158, 1817, 3634, 5657, 11314, 130111, 260222, 446903, 893806, 10278769, 20557538]

約数ペア:

[(1, 20557538), (2, 10278769), (23, 893806), (46, 446903), (79, 260222), (158, 130111), (1817, 11314), (3634, 5657)]