20813375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{15137}}^1$

素因数の和:15163

約数の個数: 16

約数和(自身を含む): 28338336

約数和(自身を除く): 7524961

約数列:

[1, 5, 11, 25, 55, 125, 275, 1375, 15137, 75685, 166507, 378425, 832535, 1892125, 4162675, 20813375]

約数ペア:

[(1, 20813375), (5, 4162675), (11, 1892125), (25, 832535), (55, 378425), (125, 166507), (275, 75685), (1375, 15137)]