20257444

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{829}}^1$

素因数の和:1023

約数の個数: 24

約数和(自身を含む): 36603000

約数和(自身を除く): 16345556

約数列:

[1, 2, 4, 41, 82, 149, 164, 298, 596, 829, 1658, 3316, 6109, 12218, 24436, 33989, 67978, 123521, 135956, 247042, 494084, 5064361, 10128722, 20257444]

約数ペア:

[(1, 20257444), (2, 10128722), (4, 5064361), (41, 494084), (82, 247042), (149, 135956), (164, 123521), (298, 67978), (596, 33989), (829, 24436), (1658, 12218), (3316, 6109)]