20890977

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{11071}}^1$

素因数の和:11128

約数の個数: 16

約数和(自身を含む): 30292992

約数和(自身を除く): 9402015

約数列:

[1, 3, 17, 37, 51, 111, 629, 1887, 11071, 33213, 188207, 409627, 564621, 1228881, 6963659, 20890977]

約数ペア:

[(1, 20890977), (3, 6963659), (17, 1228881), (37, 564621), (51, 409627), (111, 188207), (629, 33213), (1887, 11071)]