20955185

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{3877}}^1$

素因数の和:3952

約数の個数: 16

約数和(自身を含む): 26804736

約数和(自身を除く): 5849551

約数列:

[1, 5, 23, 47, 115, 235, 1081, 3877, 5405, 19385, 89171, 182219, 445855, 911095, 4191037, 20955185]

約数ペア:

[(1, 20955185), (5, 4191037), (23, 911095), (47, 445855), (115, 182219), (235, 89171), (1081, 19385), (3877, 5405)]