18941285

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{8009}}^1$

素因数の和:8068

約数の個数: 16

約数和(自身を含む): 25375680

約数和(自身を除く): 6434395

約数列:

[1, 5, 11, 43, 55, 215, 473, 2365, 8009, 40045, 88099, 344387, 440495, 1721935, 3788257, 18941285]

約数ペア:

[(1, 18941285), (5, 3788257), (11, 1721935), (43, 440495), (55, 344387), (215, 88099), (473, 40045), (2365, 8009)]