28840281

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{1493}}^1$

素因数の和:1680

約数の個数: 16

約数和(自身を含む): 39585024

約数和(自身を除く): 10744743

約数列:

[1, 3, 47, 137, 141, 411, 1493, 4479, 6439, 19317, 70171, 204541, 210513, 613623, 9613427, 28840281]

約数ペア:

[(1, 28840281), (3, 9613427), (47, 613623), (137, 210513), (141, 204541), (411, 70171), (1493, 19317), (4479, 6439)]