18976955

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{3511}}^1$

素因数の和:3586

約数の個数: 16

約数和(自身を含む): 24274944

約数和(自身を除く): 5297989

約数列:

[1, 5, 23, 47, 115, 235, 1081, 3511, 5405, 17555, 80753, 165017, 403765, 825085, 3795391, 18976955]

約数ペア:

[(1, 18976955), (5, 3795391), (23, 825085), (47, 403765), (115, 165017), (235, 80753), (1081, 17555), (3511, 5405)]