20929405

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{9803}}^1$

素因数の和:9876

約数の個数: 16

約数和(自身を含む): 29176704

約数和(自身を除く): 8247299

約数列:

[1, 5, 7, 35, 61, 305, 427, 2135, 9803, 49015, 68621, 343105, 597983, 2989915, 4185881, 20929405]

約数ペア:

[(1, 20929405), (5, 4185881), (7, 2989915), (35, 597983), (61, 343105), (305, 68621), (427, 49015), (2135, 9803)]