28921805

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{691}}^1\times {\mathrm{761}}^1$

素因数の和:1468

約数の個数: 16

約数和(自身を含む): 37965888

約数和(自身を除く): 9044083

約数列:

[1, 5, 11, 55, 691, 761, 3455, 3805, 7601, 8371, 38005, 41855, 525851, 2629255, 5784361, 28921805]

約数ペア:

[(1, 28921805), (5, 5784361), (11, 2629255), (55, 525851), (691, 41855), (761, 38005), (3455, 8371), (3805, 7601)]