21441272

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{141061}}^1$

素因数の和:141086

約数の個数: 16

約数和(自身を含む): 42318600

約数和(自身を除く): 20877328

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 141061, 282122, 564244, 1128488, 2680159, 5360318, 10720636, 21441272]

約数ペア:

[(1, 21441272), (2, 10720636), (4, 5360318), (8, 2680159), (19, 1128488), (38, 564244), (76, 282122), (152, 141061)]