20839863

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{27457}}^1$

素因数の和:27494

約数の個数: 16

約数和(自身を含む): 31631616

約数和(自身を除く): 10791753

約数列:

[1, 3, 11, 23, 33, 69, 253, 759, 27457, 82371, 302027, 631511, 906081, 1894533, 6946621, 20839863]

約数ペア:

[(1, 20839863), (3, 6946621), (11, 1894533), (23, 906081), (33, 631511), (69, 302027), (253, 82371), (759, 27457)]