9721019

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{499}}^1$

素因数の和:551

約数の個数: 24

約数和(自身を含む): 12768000

約数和(自身を除く): 3046981

約数列:

[1, 7, 11, 23, 77, 121, 161, 253, 499, 847, 1771, 2783, 3493, 5489, 11477, 19481, 38423, 60379, 80339, 126247, 422653, 883729, 1388717, 9721019]

約数ペア:

[(1, 9721019), (7, 1388717), (11, 883729), (23, 422653), (77, 126247), (121, 80339), (161, 60379), (253, 38423), (499, 19481), (847, 11477), (1771, 5489), (2783, 3493)]