1389870866

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{313}}^1\times {\mathrm{31271}}^1$

素因数の和:31657

約数の個数: 16

約数和(自身を含む): 2120992128

約数和(自身を除く): 731121262

約数列:

[1, 2, 71, 142, 313, 626, 22223, 31271, 44446, 62542, 2220241, 4440482, 9787823, 19575646, 694935433, 1389870866]

約数ペア:

[(1, 1389870866), (2, 694935433), (71, 19575646), (142, 9787823), (313, 4440482), (626, 2220241), (22223, 62542), (31271, 44446)]