21210959

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{5861}}^1$

素因数の和:5926

約数の個数: 16

約数和(自身を含む): 27012096

約数和(自身を除く): 5801137

約数列:

[1, 7, 11, 47, 77, 329, 517, 3619, 5861, 41027, 64471, 275467, 451297, 1928269, 3030137, 21210959]

約数ペア:

[(1, 21210959), (7, 3030137), (11, 1928269), (47, 451297), (77, 275467), (329, 64471), (517, 41027), (3619, 5861)]