21784862

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{3853}}^1$

素因数の和:4123

約数の個数: 16

約数和(自身を含む): 35795952

約数和(自身を除く): 14011090

約数列:

[1, 2, 11, 22, 257, 514, 2827, 3853, 5654, 7706, 42383, 84766, 990221, 1980442, 10892431, 21784862]

約数ペア:

[(1, 21784862), (2, 10892431), (11, 1980442), (22, 990221), (257, 84766), (514, 42383), (2827, 7706), (3853, 5654)]