28531279

素因数分解:

$7^2\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:283

約数の個数: 24

約数和(自身を含む): 34473600

約数和(自身を除く): 5942321

約数列:

[1, 7, 49, 59, 71, 139, 413, 497, 973, 2891, 3479, 4189, 6811, 8201, 9869, 29323, 57407, 69083, 205261, 401849, 483581, 582271, 4075897, 28531279]

約数ペア:

[(1, 28531279), (7, 4075897), (49, 582271), (59, 483581), (71, 401849), (139, 205261), (413, 69083), (497, 57407), (973, 29323), (2891, 9869), (3479, 8201), (4189, 6811)]