18858885

素因数分解:

$3^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{5009}}^1$

素因数の和:5268

約数の個数: 16

約数和(自身を含む): 30300480

約数和(自身を除く): 11441595

約数列:

[1, 3, 5, 15, 251, 753, 1255, 3765, 5009, 15027, 25045, 75135, 1257259, 3771777, 6286295, 18858885]

約数ペア:

[(1, 18858885), (3, 6286295), (5, 3771777), (15, 1257259), (251, 75135), (753, 25045), (1255, 15027), (3765, 5009)]