20806721

素因数分解:

${\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{379}}^1$

素因数の和:536

約数の個数: 16

約数和(自身を含む): 23237760

約数和(自身を除く): 2431039

約数列:

[1, 13, 41, 103, 379, 533, 1339, 4223, 4927, 15539, 39037, 54899, 202007, 507481, 1600517, 20806721]

約数ペア:

[(1, 20806721), (13, 1600517), (41, 507481), (103, 202007), (379, 54899), (533, 39037), (1339, 15539), (4223, 4927)]