20555315

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{337}}^1\times {\mathrm{1109}}^1$

素因数の和:1462

約数の個数: 16

約数和(自身を含む): 27012960

約数和(自身を除く): 6457645

約数列:

[1, 5, 11, 55, 337, 1109, 1685, 3707, 5545, 12199, 18535, 60995, 373733, 1868665, 4111063, 20555315]

約数ペア:

[(1, 20555315), (5, 4111063), (11, 1868665), (55, 373733), (337, 60995), (1109, 18535), (1685, 12199), (3707, 5545)]