21156964

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{4339}}^1$

素因数の和:4419

約数の個数: 24

約数和(自身を含む): 39372480

約数和(自身を除く): 18215516

約数列:

[1, 2, 4, 23, 46, 53, 92, 106, 212, 1219, 2438, 4339, 4876, 8678, 17356, 99797, 199594, 229967, 399188, 459934, 919868, 5289241, 10578482, 21156964]

約数ペア:

[(1, 21156964), (2, 10578482), (4, 5289241), (23, 919868), (46, 459934), (53, 399188), (92, 229967), (106, 199594), (212, 99797), (1219, 17356), (2438, 8678), (4339, 4876)]