20951045

素因数分解:

$5^1\times {\mathrm{23}}^2\times {\mathrm{89}}^2$

素因数の和:229

約数の個数: 18

約数和(自身を含む): 26580498

約数和(自身を除く): 5629453

約数列:

[1, 5, 23, 89, 115, 445, 529, 2047, 2645, 7921, 10235, 39605, 47081, 182183, 235405, 910915, 4190209, 20951045]

約数ペア:

[(1, 20951045), (5, 4190209), (23, 910915), (89, 235405), (115, 182183), (445, 47081), (529, 39605), (2047, 10235), (2645, 7921)]