21380790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{712693}}^1$

素因数の和:712703

約数の個数: 16

約数和(自身を含む): 51313968

約数和(自身を除く): 29933178

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 712693, 1425386, 2138079, 3563465, 4276158, 7126930, 10690395, 21380790]

約数ペア:

[(1, 21380790), (2, 10690395), (3, 7126930), (5, 4276158), (6, 3563465), (10, 2138079), (15, 1425386), (30, 712693)]