21705964

素因数分解:

$2^2\times 7^1\times {\mathrm{173}}^1\times {\mathrm{4481}}^1$

素因数の和:4665

約数の個数: 24

約数和(自身を含む): 43672608

約数和(自身を除く): 21966644

約数列:

[1, 2, 4, 7, 14, 28, 173, 346, 692, 1211, 2422, 4481, 4844, 8962, 17924, 31367, 62734, 125468, 775213, 1550426, 3100852, 5426491, 10852982, 21705964]

約数ペア:

[(1, 21705964), (2, 10852982), (4, 5426491), (7, 3100852), (14, 1550426), (28, 775213), (173, 125468), (346, 62734), (692, 31367), (1211, 17924), (2422, 8962), (4481, 4844)]