20520764

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{9923}}^1$

素因数の和:9985

約数の個数: 24

約数和(自身を含む): 40013568

約数和(自身を除く): 19492804

約数列:

[1, 2, 4, 11, 22, 44, 47, 94, 188, 517, 1034, 2068, 9923, 19846, 39692, 109153, 218306, 436612, 466381, 932762, 1865524, 5130191, 10260382, 20520764]

約数ペア:

[(1, 20520764), (2, 10260382), (4, 5130191), (11, 1865524), (22, 932762), (44, 466381), (47, 436612), (94, 218306), (188, 109153), (517, 39692), (1034, 19846), (2068, 9923)]