28559713

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{1999}}^1$

素因数の和:2176

約数の個数: 16

約数和(自身を含む): 35392000

約数和(自身を除く): 6832287

約数列:

[1, 7, 13, 91, 157, 1099, 1999, 2041, 13993, 14287, 25987, 181909, 313843, 2196901, 4079959, 28559713]

約数ペア:

[(1, 28559713), (7, 4079959), (13, 2196901), (91, 313843), (157, 181909), (1099, 25987), (1999, 14287), (2041, 13993)]