21830960

素因数分解:

$2^4\times 5^1\times {\mathrm{272887}}^1$

素因数の和:272900

約数の個数: 20

約数和(自身を含む): 50757168

約数和(自身を除く): 28926208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 272887, 545774, 1091548, 1364435, 2183096, 2728870, 4366192, 5457740, 10915480, 21830960]

約数ペア:

[(1, 21830960), (2, 10915480), (4, 5457740), (5, 4366192), (8, 2728870), (10, 2183096), (16, 1364435), (20, 1091548), (40, 545774), (80, 272887)]