18640167

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{68279}}^1$

素因数の和:68302

約数の個数: 16

約数和(自身を含む): 30589440

約数和(自身を除く): 11949273

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 68279, 204837, 477953, 887627, 1433859, 2662881, 6213389, 18640167]

約数ペア:

[(1, 18640167), (3, 6213389), (7, 2662881), (13, 1433859), (21, 887627), (39, 477953), (91, 204837), (273, 68279)]