20178963

素因数分解:

$3^5\times 7^1\times {\mathrm{11863}}^1$

素因数の和:11885

約数の個数: 24

約数和(自身を含む): 34547968

約数和(自身を除く): 14369005

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 11863, 35589, 83041, 106767, 249123, 320301, 747369, 960903, 2242107, 2882709, 6726321, 20178963]

約数ペア:

[(1, 20178963), (3, 6726321), (7, 2882709), (9, 2242107), (21, 960903), (27, 747369), (63, 320301), (81, 249123), (189, 106767), (243, 83041), (567, 35589), (1701, 11863)]