18968905

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{281}}^1\times {\mathrm{587}}^1$

素因数の和:896

約数の個数: 16

約数和(自身を含む): 23877504

約数和(自身を除く): 4908599

約数列:

[1, 5, 23, 115, 281, 587, 1405, 2935, 6463, 13501, 32315, 67505, 164947, 824735, 3793781, 18968905]

約数ペア:

[(1, 18968905), (5, 3793781), (23, 824735), (115, 164947), (281, 67505), (587, 32315), (1405, 13501), (2935, 6463)]