28184891

素因数分解:

$7^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1\times {\mathrm{349}}^1$

素因数の和:578

約数の個数: 16

約数和(自身を含む): 32928000

約数和(自身を除く): 4743109

約数列:

[1, 7, 83, 139, 349, 581, 973, 2443, 11537, 28967, 48511, 80759, 202769, 339577, 4026413, 28184891]

約数ペア:

[(1, 28184891), (7, 4026413), (83, 339577), (139, 202769), (349, 80759), (581, 48511), (973, 28967), (2443, 11537)]