18900028105

素因数分解:

$5^1\times 7^1\times {\mathrm{540000803}}^1$

素因数の和:540000815

約数の個数: 8

約数和(自身を含む): 25920038592

約数和(自身を除く): 7020010487

約数列:

[1, 5, 7, 35, 540000803, 2700004015, 3780005621, 18900028105]

約数ペア:

[(1, 18900028105), (5, 3780005621), (7, 2700004015), (35, 540000803)]