21209004

素因数分解:

$2^2\times 3^2\times {\mathrm{589139}}^1$

素因数の和:589149

約数の個数: 18

約数和(自身を含む): 53611740

約数和(自身を除く): 32402736

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 589139, 1178278, 1767417, 2356556, 3534834, 5302251, 7069668, 10604502, 21209004]

約数ペア:

[(1, 21209004), (2, 10604502), (3, 7069668), (4, 5302251), (6, 3534834), (9, 2356556), (12, 1767417), (18, 1178278), (36, 589139)]