20988216

素因数分解:

$2^3\times 3^2\times {\mathrm{291503}}^1$

素因数の和:291515

約数の個数: 24

約数和(自身を含む): 56843280

約数和(自身を除く): 35855064

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 291503, 583006, 874509, 1166012, 1749018, 2332024, 2623527, 3498036, 5247054, 6996072, 10494108, 20988216]

約数ペア:

[(1, 20988216), (2, 10494108), (3, 6996072), (4, 5247054), (6, 3498036), (8, 2623527), (9, 2332024), (12, 1749018), (18, 1166012), (24, 874509), (36, 583006), (72, 291503)]