20385464

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{2791}}^1$

素因数の和:2891

約数の個数: 32

約数和(自身を含む): 42215040

約数和(自身を除く): 21829576

約数列:

[1, 2, 4, 8, 11, 22, 44, 83, 88, 166, 332, 664, 913, 1826, 2791, 3652, 5582, 7304, 11164, 22328, 30701, 61402, 122804, 231653, 245608, 463306, 926612, 1853224, 2548183, 5096366, 10192732, 20385464]

約数ペア:

[(1, 20385464), (2, 10192732), (4, 5096366), (8, 2548183), (11, 1853224), (22, 926612), (44, 463306), (83, 245608), (88, 231653), (166, 122804), (332, 61402), (664, 30701), (913, 22328), (1826, 11164), (2791, 7304), (3652, 5582)]