21286618

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{16921}}^1$

素因数の和:16977

約数の個数: 16

約数和(自身を含む): 34723944

約数和(自身を除く): 13437326

約数列:

[1, 2, 17, 34, 37, 74, 629, 1258, 16921, 33842, 287657, 575314, 626077, 1252154, 10643309, 21286618]

約数ペア:

[(1, 21286618), (2, 10643309), (17, 1252154), (34, 626077), (37, 575314), (74, 287657), (629, 33842), (1258, 16921)]