28190155

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{18731}}^1$

素因数の和:18786

約数の個数: 16

約数和(自身を含む): 39561984

約数和(自身を除く): 11371829

約数列:

[1, 5, 7, 35, 43, 215, 301, 1505, 18731, 93655, 131117, 655585, 805433, 4027165, 5638031, 28190155]

約数ペア:

[(1, 28190155), (5, 5638031), (7, 4027165), (35, 805433), (43, 655585), (215, 131117), (301, 93655), (1505, 18731)]