20801305

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{9743}}^1$

素因数の和:9816

約数の個数: 16

約数和(自身を含む): 28998144

約数和(自身を除く): 8196839

約数列:

[1, 5, 7, 35, 61, 305, 427, 2135, 9743, 48715, 68201, 341005, 594323, 2971615, 4160261, 20801305]

約数ペア:

[(1, 20801305), (5, 4160261), (7, 2971615), (35, 594323), (61, 341005), (305, 68201), (427, 48715), (2135, 9743)]