21298734

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{20759}}^1$

素因数の和:20789

約数の個数: 32

約数和(自身を含む): 49824000

約数和(自身を除く): 28525266

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 114, 171, 342, 513, 1026, 20759, 41518, 62277, 124554, 186831, 373662, 394421, 560493, 788842, 1120986, 1183263, 2366526, 3549789, 7099578, 10649367, 21298734]

約数ペア:

[(1, 21298734), (2, 10649367), (3, 7099578), (6, 3549789), (9, 2366526), (18, 1183263), (19, 1120986), (27, 788842), (38, 560493), (54, 394421), (57, 373662), (114, 186831), (171, 124554), (342, 62277), (513, 41518), (1026, 20759)]