21480212

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{413081}}^1$

素因数の和:413098

約数の個数: 12

約数和(自身を含む): 40482036

約数和(自身を除く): 19001824

約数列:

[1, 2, 4, 13, 26, 52, 413081, 826162, 1652324, 5370053, 10740106, 21480212]

約数ペア:

[(1, 21480212), (2, 10740106), (4, 5370053), (13, 1652324), (26, 826162), (52, 413081)]