20804867727

素因数分解:

$3^1\times 7^1\times {\mathrm{86171}}^1\times {\mathrm{11497}}^1$

素因数の和:97678

約数の個数: 16

約数和(自身を含む): 31705780992

約数和(自身を除く): 10900913265

約数列:

[1, 3, 7, 21, 11497, 34491, 80479, 86171, 241437, 258513, 603197, 1809591, 990707987, 2972123961, 6934955909, 20804867727]

約数ペア:

[(1, 20804867727), (3, 6934955909), (7, 2972123961), (21, 990707987), (11497, 1809591), (34491, 603197), (80479, 258513), (86171, 241437)]