20888343

素因数分解:

$3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2531}}^1$

素因数の和:2675

約数の個数: 24

約数和(自身を含む): 34759296

約数和(自身を除く): 13870953

約数列:

[1, 3, 7, 9, 21, 63, 131, 393, 917, 1179, 2531, 2751, 7593, 8253, 17717, 22779, 53151, 159453, 331561, 994683, 2320927, 2984049, 6962781, 20888343]

約数ペア:

[(1, 20888343), (3, 6962781), (7, 2984049), (9, 2320927), (21, 994683), (63, 331561), (131, 159453), (393, 53151), (917, 22779), (1179, 17717), (2531, 8253), (2751, 7593)]