21804039

素因数分解:

$3^3\times {\mathrm{19}}^2\times {\mathrm{2237}}^1$

素因数の和:2284

約数の個数: 24

約数和(自身を含む): 34107120

約数和(自身を除く): 12303081

約数列:

[1, 3, 9, 19, 27, 57, 171, 361, 513, 1083, 2237, 3249, 6711, 9747, 20133, 42503, 60399, 127509, 382527, 807557, 1147581, 2422671, 7268013, 21804039]

約数ペア:

[(1, 21804039), (3, 7268013), (9, 2422671), (19, 1147581), (27, 807557), (57, 382527), (171, 127509), (361, 60399), (513, 42503), (1083, 20133), (2237, 9747), (3249, 6711)]