21046335

素因数分解:

$3^1\times 5^1\times {\mathrm{821}}^1\times {\mathrm{1709}}^1$

素因数の和:2538

約数の個数: 16

約数和(自身を含む): 33734880

約数和(自身を除く): 12688545

約数列:

[1, 3, 5, 15, 821, 1709, 2463, 4105, 5127, 8545, 12315, 25635, 1403089, 4209267, 7015445, 21046335]

約数ペア:

[(1, 21046335), (3, 7015445), (5, 4209267), (15, 1403089), (821, 25635), (1709, 12315), (2463, 8545), (4105, 5127)]