21986287

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1583}}^1$

素因数の和:1662

約数の個数: 16

約数和(自身を含む): 25090560

約数和(自身を除く): 3104273

約数列:

[1, 17, 19, 43, 323, 731, 817, 1583, 13889, 26911, 30077, 68069, 511309, 1157173, 1293311, 21986287]

約数ペア:

[(1, 21986287), (17, 1293311), (19, 1157173), (43, 511309), (323, 68069), (731, 30077), (817, 26911), (1583, 13889)]