21156842

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79537}}^1$

素因数の和:79565

約数の個数: 16

約数和(自身を含む): 38178240

約数和(自身を除く): 17021398

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 79537, 159074, 556759, 1113518, 1511203, 3022406, 10578421, 21156842]

約数ペア:

[(1, 21156842), (2, 10578421), (7, 3022406), (14, 1511203), (19, 1113518), (38, 556759), (133, 159074), (266, 79537)]