20497545

素因数分解:

$3^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{1621}}^1$

素因数の和:1913

約数の個数: 24

約数和(自身を含む): 35677512

約数和(自身を除く): 15179967

約数列:

[1, 3, 5, 9, 15, 45, 281, 843, 1405, 1621, 2529, 4215, 4863, 8105, 12645, 14589, 24315, 72945, 455501, 1366503, 2277505, 4099509, 6832515, 20497545]

約数ペア:

[(1, 20497545), (3, 6832515), (5, 4099509), (9, 2277505), (15, 1366503), (45, 455501), (281, 72945), (843, 24315), (1405, 14589), (1621, 12645), (2529, 8105), (4215, 4863)]