21756669

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{647}}^1\times {\mathrm{1019}}^1$

素因数の和:1680

約数の個数: 16

約数和(自身を含む): 31726080

約数和(自身を除く): 9969411

約数列:

[1, 3, 11, 33, 647, 1019, 1941, 3057, 7117, 11209, 21351, 33627, 659293, 1977879, 7252223, 21756669]

約数ペア:

[(1, 21756669), (3, 7252223), (11, 1977879), (33, 659293), (647, 33627), (1019, 21351), (1941, 11209), (3057, 7117)]