21198364

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{20947}}^1$

素因数の和:20985

約数の個数: 24

約数和(自身を含む): 42231168

約数和(自身を除く): 21032804

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 253, 506, 1012, 20947, 41894, 83788, 230417, 460834, 481781, 921668, 963562, 1927124, 5299591, 10599182, 21198364]

約数ペア:

[(1, 21198364), (2, 10599182), (4, 5299591), (11, 1927124), (22, 963562), (23, 921668), (44, 481781), (46, 460834), (92, 230417), (253, 83788), (506, 41894), (1012, 20947)]