20509404

素因数分解:

$2^2\times 3^1\times {\mathrm{1213}}^1\times {\mathrm{1409}}^1$

素因数の和:2629

約数の個数: 24

約数和(自身を含む): 47928720

約数和(自身を除く): 27419316

約数列:

[1, 2, 3, 4, 6, 12, 1213, 1409, 2426, 2818, 3639, 4227, 4852, 5636, 7278, 8454, 14556, 16908, 1709117, 3418234, 5127351, 6836468, 10254702, 20509404]

約数ペア:

[(1, 20509404), (2, 10254702), (3, 6836468), (4, 5127351), (6, 3418234), (12, 1709117), (1213, 16908), (1409, 14556), (2426, 8454), (2818, 7278), (3639, 5636), (4227, 4852)]