21908673

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{971}}^1$

素因数の和:1109

約数の個数: 24

約数和(自身を含む): 33359040

約数和(自身を除く): 11450367

約数列:

[1, 3, 9, 23, 69, 109, 207, 327, 971, 981, 2507, 2913, 7521, 8739, 22333, 22563, 66999, 105839, 200997, 317517, 952551, 2434297, 7302891, 21908673]

約数ペア:

[(1, 21908673), (3, 7302891), (9, 2434297), (23, 952551), (69, 317517), (109, 200997), (207, 105839), (327, 66999), (971, 22563), (981, 22333), (2507, 8739), (2913, 7521)]