20810965

素因数分解:

$5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{5557}}^1$

素因数の和:5676

約数の個数: 16

約数和(自身を含む): 28812672

約数和(自身を除く): 8001707

約数列:

[1, 5, 7, 35, 107, 535, 749, 3745, 5557, 27785, 38899, 194495, 594599, 2972995, 4162193, 20810965]

約数ペア:

[(1, 20810965), (5, 4162193), (7, 2972995), (35, 594599), (107, 194495), (535, 38899), (749, 27785), (3745, 5557)]