161908084

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{239509}}^1$

素因数の和:239539

約数の個数: 18

約数和(自身を含む): 306812310

約数和(自身を除く): 144904226

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 239509, 479018, 958036, 3113617, 6227234, 12454468, 40477021, 80954042, 161908084]

約数ペア:

[(1, 161908084), (2, 80954042), (4, 40477021), (13, 12454468), (26, 6227234), (52, 3113617), (169, 958036), (338, 479018), (676, 239509)]