19858959

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{283}}^1$

素因数の和:428

約数の個数: 32

約数和(自身を含む): 31080960

約数和(自身を除く): 11222001

約数列:

[1, 3, 9, 23, 27, 69, 113, 207, 283, 339, 621, 849, 1017, 2547, 2599, 3051, 6509, 7641, 7797, 19527, 23391, 31979, 58581, 70173, 95937, 175743, 287811, 735517, 863433, 2206551, 6619653, 19858959]

約数ペア:

[(1, 19858959), (3, 6619653), (9, 2206551), (23, 863433), (27, 735517), (69, 287811), (113, 175743), (207, 95937), (283, 70173), (339, 58581), (621, 31979), (849, 23391), (1017, 19527), (2547, 7797), (2599, 7641), (3051, 6509)]