217899

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:119

約数の個数: 24

約数和(自身を含む): 359424

約数和(自身を除く): 141525

約数列:

[1, 3, 9, 11, 31, 33, 71, 93, 99, 213, 279, 341, 639, 781, 1023, 2201, 2343, 3069, 6603, 7029, 19809, 24211, 72633, 217899]

約数ペア:

[(1, 217899), (3, 72633), (9, 24211), (11, 19809), (31, 7029), (33, 6603), (71, 3069), (93, 2343), (99, 2201), (213, 1023), (279, 781), (341, 639)]