18979597

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{5087}}^1$

素因数の和:5148

約数の個数: 16

約数和(自身を含む): 23933952

約数和(自身を除く): 4954355

約数列:

[1, 7, 13, 41, 91, 287, 533, 3731, 5087, 35609, 66131, 208567, 462917, 1459969, 2711371, 18979597]

約数ペア:

[(1, 18979597), (7, 2711371), (13, 1459969), (41, 462917), (91, 208567), (287, 66131), (533, 35609), (3731, 5087)]