20778153

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1069}}^1$

素因数の和:1133

約数の個数: 32

約数和(自身を含む): 32870400

約数和(自身を除く): 12092247

約数列:

[1, 3, 11, 19, 31, 33, 57, 93, 209, 341, 589, 627, 1023, 1069, 1767, 3207, 6479, 11759, 19437, 20311, 33139, 35277, 60933, 99417, 223421, 364529, 629641, 670263, 1093587, 1888923, 6926051, 20778153]

約数ペア:

[(1, 20778153), (3, 6926051), (11, 1888923), (19, 1093587), (31, 670263), (33, 629641), (57, 364529), (93, 223421), (209, 99417), (341, 60933), (589, 35277), (627, 33139), (1023, 20311), (1069, 19437), (1767, 11759), (3207, 6479)]