21378090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{712603}}^1$

素因数の和:712613

約数の個数: 16

約数和(自身を含む): 51307488

約数和(自身を除く): 29929398

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 712603, 1425206, 2137809, 3563015, 4275618, 7126030, 10689045, 21378090]

約数ペア:

[(1, 21378090), (2, 10689045), (3, 7126030), (5, 4275618), (6, 3563015), (10, 2137809), (15, 1425206), (30, 712603)]