20512261

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{983}}^1$

素因数の和:1272

約数の個数: 16

約数和(自身を含む): 25694208

約数和(自身を除く): 5181947

約数列:

[1, 7, 11, 77, 271, 983, 1897, 2981, 6881, 10813, 20867, 75691, 266393, 1864751, 2930323, 20512261]

約数ペア:

[(1, 20512261), (7, 2930323), (11, 1864751), (77, 266393), (271, 75691), (983, 20867), (1897, 10813), (2981, 6881)]