28086891

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{22669}}^1$

素因数の和:22738

約数の個数: 16

約数和(自身を含む): 43526400

約数和(自身を除く): 15439509

約数列:

[1, 3, 7, 21, 59, 177, 413, 1239, 22669, 68007, 158683, 476049, 1337471, 4012413, 9362297, 28086891]

約数ペア:

[(1, 28086891), (3, 9362297), (7, 4012413), (21, 1337471), (59, 476049), (177, 158683), (413, 68007), (1239, 22669)]