20900236

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{17359}}^1$

素因数の和:17413

約数の個数: 24

約数和(自身を含む): 42775040

約数和(自身を除く): 21874804

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 17359, 34718, 69436, 121513, 243026, 486052, 746437, 1492874, 2985748, 5225059, 10450118, 20900236]

約数ペア:

[(1, 20900236), (2, 10450118), (4, 5225059), (7, 2985748), (14, 1492874), (28, 746437), (43, 486052), (86, 243026), (172, 121513), (301, 69436), (602, 34718), (1204, 17359)]