20949305

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{16963}}^1$

素因数の和:17000

約数の個数: 16

約数和(自身を含む): 28499520

約数和(自身を除く): 7550215

約数列:

[1, 5, 13, 19, 65, 95, 247, 1235, 16963, 84815, 220519, 322297, 1102595, 1611485, 4189861, 20949305]

約数ペア:

[(1, 20949305), (5, 4189861), (13, 1611485), (19, 1102595), (65, 322297), (95, 220519), (247, 84815), (1235, 16963)]