19785844

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{29269}}^1$

素因数の和:29299

約数の個数: 18

約数和(自身を含む): 37494870

約数和(自身を除く): 17709026

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 29269, 58538, 117076, 380497, 760994, 1521988, 4946461, 9892922, 19785844]

約数ペア:

[(1, 19785844), (2, 9892922), (4, 4946461), (13, 1521988), (26, 760994), (52, 380497), (169, 117076), (338, 58538), (676, 29269)]