19391405

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{1301}}^1$

素因数の和:1588

約数の個数: 16

約数和(自身を含む): 25498368

約数和(自身を除く): 6106963

約数列:

[1, 5, 11, 55, 271, 1301, 1355, 2981, 6505, 14311, 14905, 71555, 352571, 1762855, 3878281, 19391405]

約数ペア:

[(1, 19391405), (5, 3878281), (11, 1762855), (55, 352571), (271, 71555), (1301, 14905), (1355, 14311), (2981, 6505)]