28213839

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{12011}}^1$

素因数の和:12052

約数の個数: 20

約数和(自身を含む): 43603560

約数和(自身を除く): 15389721

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 12011, 36033, 108099, 324297, 348319, 972891, 1044957, 3134871, 9404613, 28213839]

約数ペア:

[(1, 28213839), (3, 9404613), (9, 3134871), (27, 1044957), (29, 972891), (81, 348319), (87, 324297), (261, 108099), (783, 36033), (2349, 12011)]