19958972

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{479}}^1\times {\mathrm{947}}^1$

素因数の和:1441

約数の個数: 24

約数和(自身を含む): 38223360

約数和(自身を除く): 18264388

約数列:

[1, 2, 4, 11, 22, 44, 479, 947, 958, 1894, 1916, 3788, 5269, 10417, 10538, 20834, 21076, 41668, 453613, 907226, 1814452, 4989743, 9979486, 19958972]

約数ペア:

[(1, 19958972), (2, 9979486), (4, 4989743), (11, 1814452), (22, 907226), (44, 453613), (479, 41668), (947, 21076), (958, 20834), (1894, 10538), (1916, 10417), (3788, 5269)]