20511396

素因数分解:

$2^2\times 3^2\times {\mathrm{139}}^1\times {\mathrm{4099}}^1$

素因数の和:4248

約数の個数: 36

約数和(自身を含む): 52234000

約数和(自身を除く): 31722604

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 139, 278, 417, 556, 834, 1251, 1668, 2502, 4099, 5004, 8198, 12297, 16396, 24594, 36891, 49188, 73782, 147564, 569761, 1139522, 1709283, 2279044, 3418566, 5127849, 6837132, 10255698, 20511396]

約数ペア:

[(1, 20511396), (2, 10255698), (3, 6837132), (4, 5127849), (6, 3418566), (9, 2279044), (12, 1709283), (18, 1139522), (36, 569761), (139, 147564), (278, 73782), (417, 49188), (556, 36891), (834, 24594), (1251, 16396), (1668, 12297), (2502, 8198), (4099, 5004)]