20804413

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{2213}}^1$

素因数の和:2316

約数の個数: 16

約数和(自身を含む): 25505280

約数和(自身を除く): 4700867

約数列:

[1, 7, 17, 79, 119, 553, 1343, 2213, 9401, 15491, 37621, 174827, 263347, 1223789, 2972059, 20804413]

約数ペア:

[(1, 20804413), (7, 2972059), (17, 1223789), (79, 263347), (119, 174827), (553, 37621), (1343, 15491), (2213, 9401)]