20785823709

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{209837}}^1$

素因数の和:209989

約数の個数: 32

約数和(自身を含む): 32634005760

約数和(自身を除く): 11848182051

約数列:

[1, 3, 7, 21, 53, 89, 159, 267, 371, 623, 1113, 1869, 4717, 14151, 33019, 99057, 209837, 629511, 1468859, 4406577, 11121361, 18675493, 33364083, 56026479, 77849527, 130728451, 233548581, 392185353, 989801129, 2969403387, 6928607903, 20785823709]

約数ペア:

[(1, 20785823709), (3, 6928607903), (7, 2969403387), (21, 989801129), (53, 392185353), (89, 233548581), (159, 130728451), (267, 77849527), (371, 56026479), (623, 33364083), (1113, 18675493), (1869, 11121361), (4717, 4406577), (14151, 1468859), (33019, 629511), (99057, 209837)]