20996957527

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{697087}}^1$

素因数の和:697438

約数の個数: 16

約数和(自身を含む): 25920520192

約数和(自身を除く): 4923562665

約数列:

[1, 7, 13, 91, 331, 2317, 4303, 30121, 697087, 4879609, 9062131, 63434917, 230735797, 1615150579, 2999565361, 20996957527]

約数ペア:

[(1, 20996957527), (7, 2999565361), (13, 1615150579), (91, 230735797), (331, 63434917), (2317, 9062131), (4303, 4879609), (30121, 697087)]