19668571

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{397}}^1$

素因数の和:550

約数の個数: 16

約数和(自身を含む): 22020544

約数和(自身を除く): 2351973

約数列:

[1, 13, 37, 103, 397, 481, 1339, 3811, 5161, 14689, 40891, 49543, 190957, 531583, 1512967, 19668571]

約数ペア:

[(1, 19668571), (13, 1512967), (37, 531583), (103, 190957), (397, 49543), (481, 40891), (1339, 14689), (3811, 5161)]