21306786

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{1499}}^1$

素因数の和:1630

約数の個数: 32

約数和(自身を含む): 44928000

約数和(自身を除く): 23621214

約数列:

[1, 2, 3, 6, 23, 46, 69, 103, 138, 206, 309, 618, 1499, 2369, 2998, 4497, 4738, 7107, 8994, 14214, 34477, 68954, 103431, 154397, 206862, 308794, 463191, 926382, 3551131, 7102262, 10653393, 21306786]

約数ペア:

[(1, 21306786), (2, 10653393), (3, 7102262), (6, 3551131), (23, 926382), (46, 463191), (69, 308794), (103, 206862), (138, 154397), (206, 103431), (309, 68954), (618, 34477), (1499, 14214), (2369, 8994), (2998, 7107), (4497, 4738)]