21899009

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{647}}^1$

素因数の和:856

約数の個数: 16

約数和(自身を含む): 25474176

約数和(自身を除く): 3575167

約数列:

[1, 11, 17, 181, 187, 647, 1991, 3077, 7117, 10999, 33847, 117107, 120989, 1288177, 1990819, 21899009]

約数ペア:

[(1, 21899009), (11, 1990819), (17, 1288177), (181, 120989), (187, 117107), (647, 33847), (1991, 10999), (3077, 7117)]