20508956

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{2647}}^1$

素因数の和:2813

約数の個数: 24

約数和(自身を含む): 38925600

約数和(自身を除く): 18416644

約数列:

[1, 2, 4, 13, 26, 52, 149, 298, 596, 1937, 2647, 3874, 5294, 7748, 10588, 34411, 68822, 137644, 394403, 788806, 1577612, 5127239, 10254478, 20508956]

約数ペア:

[(1, 20508956), (2, 10254478), (4, 5127239), (13, 1577612), (26, 788806), (52, 394403), (149, 137644), (298, 68822), (596, 34411), (1937, 10588), (2647, 7748), (3874, 5294)]