21035612

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{404531}}^1$

素因数の和:404548

約数の個数: 12

約数和(自身を含む): 39644136

約数和(自身を除く): 18608524

約数列:

[1, 2, 4, 13, 26, 52, 404531, 809062, 1618124, 5258903, 10517806, 21035612]

約数ペア:

[(1, 21035612), (2, 10517806), (4, 5258903), (13, 1618124), (26, 809062), (52, 404531)]