28108065

素因数分解:

$3^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{4451}}^1$

素因数の和:4880

約数の個数: 16

約数和(自身を含む): 45089856

約数和(自身を除く): 16981791

約数列:

[1, 3, 5, 15, 421, 1263, 2105, 4451, 6315, 13353, 22255, 66765, 1873871, 5621613, 9369355, 28108065]

約数ペア:

[(1, 28108065), (3, 9369355), (5, 5621613), (15, 1873871), (421, 66765), (1263, 22255), (2105, 13353), (4451, 6315)]