253663487

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{20983}}^1$

素因数の和:21158

約数の個数: 16

約数和(自身を含む): 318285312

約数和(自身を除く): 64621825

約数列:

[1, 7, 11, 77, 157, 1099, 1727, 12089, 20983, 146881, 230813, 1615691, 3294331, 23060317, 36237641, 253663487]

約数ペア:

[(1, 253663487), (7, 36237641), (11, 23060317), (77, 3294331), (157, 1615691), (1099, 230813), (1727, 146881), (12089, 20983)]