19792857

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{953}}^1$

素因数の和:1029

約数の個数: 32

約数和(自身を含む): 32237568

約数和(自身を除く): 12444711

約数列:

[1, 3, 7, 21, 23, 43, 69, 129, 161, 301, 483, 903, 953, 989, 2859, 2967, 6671, 6923, 20013, 20769, 21919, 40979, 65757, 122937, 153433, 286853, 460299, 860559, 942517, 2827551, 6597619, 19792857]

約数ペア:

[(1, 19792857), (3, 6597619), (7, 2827551), (21, 942517), (23, 860559), (43, 460299), (69, 286853), (129, 153433), (161, 122937), (301, 65757), (483, 40979), (903, 21919), (953, 20769), (989, 20013), (2859, 6923), (2967, 6671)]