28142145

素因数分解:

$3^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{1451}}^1$

素因数の和:1893

約数の個数: 24

約数和(自身を含む): 48926592

約数和(自身を除く): 20784447

約数列:

[1, 3, 5, 9, 15, 45, 431, 1293, 1451, 2155, 3879, 4353, 6465, 7255, 13059, 19395, 21765, 65295, 625381, 1876143, 3126905, 5628429, 9380715, 28142145]

約数ペア:

[(1, 28142145), (3, 9380715), (5, 5628429), (9, 3126905), (15, 1876143), (45, 625381), (431, 65295), (1293, 21765), (1451, 19395), (2155, 13059), (3879, 7255), (4353, 6465)]