86990981

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1\times {\mathrm{239}}^1$

素因数の和:449

約数の個数: 32

約数和(自身を含む): 113356800

約数和(自身を除く): 26365819

約数列:

[1, 7, 11, 29, 77, 163, 203, 239, 319, 1141, 1673, 1793, 2233, 2629, 4727, 6931, 12551, 18403, 33089, 38957, 48517, 51997, 76241, 272699, 363979, 428527, 533687, 1129753, 2999689, 7908271, 12427283, 86990981]

約数ペア:

[(1, 86990981), (7, 12427283), (11, 7908271), (29, 2999689), (77, 1129753), (163, 533687), (203, 428527), (239, 363979), (319, 272699), (1141, 76241), (1673, 51997), (1793, 48517), (2233, 38957), (2629, 33089), (4727, 18403), (6931, 12551)]