19539868

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{16903}}^1$

素因数の和:16941

約数の個数: 18

約数和(自身を含む): 36326696

約数和(自身を除く): 16786828

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 16903, 33806, 67612, 287351, 574702, 1149404, 4884967, 9769934, 19539868]

約数ペア:

[(1, 19539868), (2, 9769934), (4, 4884967), (17, 1149404), (34, 574702), (68, 287351), (289, 67612), (578, 33806), (1156, 16903)]