18747207

素因数分解:

$3^5\times {\mathrm{179}}^1\times {\mathrm{431}}^1$

素因数の和:625

約数の個数: 24

約数和(自身を含む): 28304640

約数和(自身を除く): 9557433

約数列:

[1, 3, 9, 27, 81, 179, 243, 431, 537, 1293, 1611, 3879, 4833, 11637, 14499, 34911, 43497, 77149, 104733, 231447, 694341, 2083023, 6249069, 18747207]

約数ペア:

[(1, 18747207), (3, 6249069), (9, 2083023), (27, 694341), (81, 231447), (179, 104733), (243, 77149), (431, 43497), (537, 34911), (1293, 14499), (1611, 11637), (3879, 4833)]