28893105

素因数分解:

$3^4\times 5^1\times {\mathrm{71341}}^1$

素因数の和:71358

約数の個数: 20

約数和(自身を含む): 51794292

約数和(自身を除く): 22901187

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 71341, 214023, 356705, 642069, 1070115, 1926207, 3210345, 5778621, 9631035, 28893105]

約数ペア:

[(1, 28893105), (3, 9631035), (5, 5778621), (9, 3210345), (15, 1926207), (27, 1070115), (45, 642069), (81, 356705), (135, 214023), (405, 71341)]