16581981

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{2203}}^1$

素因数の和:2412

約数の個数: 16

約数和(自身を含む): 23944256

約数和(自身を除く): 7362275

約数列:

[1, 3, 13, 39, 193, 579, 2203, 2509, 6609, 7527, 28639, 85917, 425179, 1275537, 5527327, 16581981]

約数ペア:

[(1, 16581981), (3, 5527327), (13, 1275537), (39, 425179), (193, 85917), (579, 28639), (2203, 7527), (2509, 6609)]