21607508

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{2153}}^1$

素因数の和:2363

約数の個数: 24

約数和(自身を含む): 40951848

約数和(自身を除く): 19344340

約数列:

[1, 2, 4, 13, 26, 52, 193, 386, 772, 2153, 2509, 4306, 5018, 8612, 10036, 27989, 55978, 111956, 415529, 831058, 1662116, 5401877, 10803754, 21607508]

約数ペア:

[(1, 21607508), (2, 10803754), (4, 5401877), (13, 1662116), (26, 831058), (52, 415529), (193, 111956), (386, 55978), (772, 27989), (2153, 10036), (2509, 8612), (4306, 5018)]