21870830

素因数分解:

$2^1\times 5^1\times {\mathrm{433}}^1\times {\mathrm{5051}}^1$

素因数の和:5491

約数の個数: 16

約数和(自身を含む): 39466224

約数和(自身を除く): 17595394

約数列:

[1, 2, 5, 10, 433, 866, 2165, 4330, 5051, 10102, 25255, 50510, 2187083, 4374166, 10935415, 21870830]

約数ペア:

[(1, 21870830), (2, 10935415), (5, 4374166), (10, 2187083), (433, 50510), (866, 25255), (2165, 10102), (4330, 5051)]