20554499

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{1301}}^1$

素因数の和:1406

約数の個数: 16

約数和(自身を含む): 24540096

約数和(自身を除く): 3985597

約数列:

[1, 7, 37, 61, 259, 427, 1301, 2257, 9107, 15799, 48137, 79361, 336959, 555527, 2936357, 20554499]

約数ペア:

[(1, 20554499), (7, 2936357), (37, 555527), (61, 336959), (259, 79361), (427, 48137), (1301, 15799), (2257, 9107)]