19493405

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{1277}}^1$

素因数の和:1396

約数の個数: 16

約数和(自身を含む): 24292224

約数和(自身を除く): 4798819

約数列:

[1, 5, 43, 71, 215, 355, 1277, 3053, 6385, 15265, 54911, 90667, 274555, 453335, 3898681, 19493405]

約数ペア:

[(1, 19493405), (5, 3898681), (43, 453335), (71, 274555), (215, 90667), (355, 54911), (1277, 15265), (3053, 6385)]