20552157

素因数分解:

$3^3\times {\mathrm{71}}^2\times {\mathrm{151}}^1$

素因数の和:302

約数の個数: 24

約数和(自身を含む): 31087040

約数和(自身を除く): 10534883

約数列:

[1, 3, 9, 27, 71, 151, 213, 453, 639, 1359, 1917, 4077, 5041, 10721, 15123, 32163, 45369, 96489, 136107, 289467, 761191, 2283573, 6850719, 20552157]

約数ペア:

[(1, 20552157), (3, 6850719), (9, 2283573), (27, 761191), (71, 289467), (151, 136107), (213, 96489), (453, 45369), (639, 32163), (1359, 15123), (1917, 10721), (4077, 5041)]