21122091

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{829}}^1$

素因数の和:1003

約数の個数: 24

約数和(自身を含む): 32370000

約数和(自身を除く): 11247909

約数列:

[1, 3, 9, 19, 57, 149, 171, 447, 829, 1341, 2487, 2831, 7461, 8493, 15751, 25479, 47253, 123521, 141759, 370563, 1111689, 2346899, 7040697, 21122091]

約数ペア:

[(1, 21122091), (3, 7040697), (9, 2346899), (19, 1111689), (57, 370563), (149, 141759), (171, 123521), (447, 47253), (829, 25479), (1341, 15751), (2487, 8493), (2831, 7461)]