20990524

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{859}}^1$

素因数の和:1053

約数の個数: 24

約数和(自身を含む): 37926000

約数和(自身を除く): 16935476

約数列:

[1, 2, 4, 41, 82, 149, 164, 298, 596, 859, 1718, 3436, 6109, 12218, 24436, 35219, 70438, 127991, 140876, 255982, 511964, 5247631, 10495262, 20990524]

約数ペア:

[(1, 20990524), (2, 10495262), (4, 5247631), (41, 511964), (82, 255982), (149, 140876), (164, 127991), (298, 70438), (596, 35219), (859, 24436), (1718, 12218), (3436, 6109)]