20659414

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{271}}^1\times {\mathrm{811}}^1$

素因数の和:1131

約数の個数: 16

約数和(自身を含む): 31804416

約数和(自身を除く): 11145002

約数列:

[1, 2, 47, 94, 271, 542, 811, 1622, 12737, 25474, 38117, 76234, 219781, 439562, 10329707, 20659414]

約数ペア:

[(1, 20659414), (2, 10329707), (47, 439562), (94, 219781), (271, 76234), (542, 38117), (811, 25474), (1622, 12737)]