20816005

素因数分解:

$5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{3019}}^1$

素因数の和:3228

約数の個数: 16

約数和(自身を含む): 28702080

約数和(自身を除く): 7886075

約数列:

[1, 5, 7, 35, 197, 985, 1379, 3019, 6895, 15095, 21133, 105665, 594743, 2973715, 4163201, 20816005]

約数ペア:

[(1, 20816005), (5, 4163201), (7, 2973715), (35, 594743), (197, 105665), (985, 21133), (1379, 15095), (3019, 6895)]