19988683

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{1237}}^1$

素因数の和:1374

約数の個数: 16

約数和(自身を含む): 23710176

約数和(自身を除く): 3721493

約数列:

[1, 11, 13, 113, 143, 1237, 1243, 1469, 13607, 16081, 16159, 139781, 176891, 1537591, 1817153, 19988683]

約数ペア:

[(1, 19988683), (11, 1817153), (13, 1537591), (113, 176891), (143, 139781), (1237, 16159), (1243, 16081), (1469, 13607)]