21544180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{153887}}^1$

素因数の和:153903

約数の個数: 24

約数和(自身を含む): 51706368

約数和(自身を除く): 30162188

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 153887, 307774, 615548, 769435, 1077209, 1538870, 2154418, 3077740, 4308836, 5386045, 10772090, 21544180]

約数ペア:

[(1, 21544180), (2, 10772090), (4, 5386045), (5, 4308836), (7, 3077740), (10, 2154418), (14, 1538870), (20, 1077209), (28, 769435), (35, 615548), (70, 307774), (140, 153887)]