18918927

素因数分解:

$3^4\times {\mathrm{19}}^2\times {\mathrm{647}}^1$

素因数の和:697

約数の個数: 30

約数和(自身を含む): 29873448

約数和(自身を除く): 10954521

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 361, 513, 647, 1083, 1539, 1941, 3249, 5823, 9747, 12293, 17469, 29241, 36879, 52407, 110637, 233567, 331911, 700701, 995733, 2102103, 6306309, 18918927]

約数ペア:

[(1, 18918927), (3, 6306309), (9, 2102103), (19, 995733), (27, 700701), (57, 331911), (81, 233567), (171, 110637), (361, 52407), (513, 36879), (647, 29241), (1083, 17469), (1539, 12293), (1941, 9747), (3249, 5823)]