19999722908

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{839}}^1\times {\mathrm{541763}}^1$

素因数の和:542617

約数の個数: 24

約数和(自身を含む): 38226867840

約数和(自身を除く): 18227144932

約数列:

[1, 2, 4, 11, 22, 44, 839, 1678, 3356, 9229, 18458, 36916, 541763, 1083526, 2167052, 5959393, 11918786, 23837572, 454539157, 909078314, 1818156628, 4999930727, 9999861454, 19999722908]

約数ペア:

[(1, 19999722908), (2, 9999861454), (4, 4999930727), (11, 1818156628), (22, 909078314), (44, 454539157), (839, 23837572), (1678, 11918786), (3356, 5959393), (9229, 2167052), (18458, 1083526), (36916, 541763)]