21126540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{352109}}^1$

素因数の和:352121

約数の個数: 24

約数和(自身を含む): 59154480

約数和(自身を除く): 38027940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 352109, 704218, 1056327, 1408436, 1760545, 2112654, 3521090, 4225308, 5281635, 7042180, 10563270, 21126540]

約数ペア:

[(1, 21126540), (2, 10563270), (3, 7042180), (4, 5281635), (5, 4225308), (6, 3521090), (10, 2112654), (12, 1760545), (15, 1408436), (20, 1056327), (30, 704218), (60, 352109)]