21156556916

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{383}}^1\times {\mathrm{73849}}^1$

素因数の和:74264

約数の個数: 48

約数和(自身を含む): 42877900800

約数和(自身を除く): 21721343884

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 187, 374, 383, 748, 766, 1532, 4213, 6511, 8426, 13022, 16852, 26044, 71621, 73849, 143242, 147698, 286484, 295396, 812339, 1255433, 1624678, 2510866, 3249356, 5021732, 13809763, 27619526, 28284167, 55239052, 56568334, 113136668, 311125837, 480830839, 622251674, 961661678, 1244503348, 1923323356, 5289139229, 10578278458, 21156556916]

約数ペア:

[(1, 21156556916), (2, 10578278458), (4, 5289139229), (11, 1923323356), (17, 1244503348), (22, 961661678), (34, 622251674), (44, 480830839), (68, 311125837), (187, 113136668), (374, 56568334), (383, 55239052), (748, 28284167), (766, 27619526), (1532, 13809763), (4213, 5021732), (6511, 3249356), (8426, 2510866), (13022, 1624678), (16852, 1255433), (26044, 812339), (71621, 295396), (73849, 286484), (143242, 147698)]