21788254

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{509}}^1\times {\mathrm{1259}}^1$

素因数の和:1787

約数の個数: 16

約数和(自身を含む): 34700400

約数和(自身を除く): 12912146

約数列:

[1, 2, 17, 34, 509, 1018, 1259, 2518, 8653, 17306, 21403, 42806, 640831, 1281662, 10894127, 21788254]

約数ペア:

[(1, 21788254), (2, 10894127), (17, 1281662), (34, 640831), (509, 42806), (1018, 21403), (1259, 17306), (2518, 8653)]