21082995

素因数分解:

$3^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1823}}^1$

素因数の和:2091

約数の個数: 24

約数和(自身を含む): 36706176

約数和(自身を除く): 15623181

約数列:

[1, 3, 5, 9, 15, 45, 257, 771, 1285, 1823, 2313, 3855, 5469, 9115, 11565, 16407, 27345, 82035, 468511, 1405533, 2342555, 4216599, 7027665, 21082995]

約数ペア:

[(1, 21082995), (3, 7027665), (5, 4216599), (9, 2342555), (15, 1405533), (45, 468511), (257, 82035), (771, 27345), (1285, 16407), (1823, 11565), (2313, 9115), (3855, 5469)]