20754855

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1823}}^1$

素因数の和:1868

約数の個数: 48

約数和(自身を含む): 40974336

約数和(自身を除く): 20219481

約数列:

[1, 3, 5, 9, 11, 15, 23, 33, 45, 55, 69, 99, 115, 165, 207, 253, 345, 495, 759, 1035, 1265, 1823, 2277, 3795, 5469, 9115, 11385, 16407, 20053, 27345, 41929, 60159, 82035, 100265, 125787, 180477, 209645, 300795, 377361, 461219, 628935, 902385, 1383657, 1886805, 2306095, 4150971, 6918285, 20754855]

約数ペア:

[(1, 20754855), (3, 6918285), (5, 4150971), (9, 2306095), (11, 1886805), (15, 1383657), (23, 902385), (33, 628935), (45, 461219), (55, 377361), (69, 300795), (99, 209645), (115, 180477), (165, 125787), (207, 100265), (253, 82035), (345, 60159), (495, 41929), (759, 27345), (1035, 20053), (1265, 16407), (1823, 11385), (2277, 9115), (3795, 5469)]