20166538

素因数分解:

$2^1\times 7^2\times {\mathrm{23}}^2\times {\mathrm{389}}^1$

素因数の和:451

約数の個数: 36

約数和(自身を含む): 36879570

約数和(自身を除く): 16713032

約数列:

[1, 2, 7, 14, 23, 46, 49, 98, 161, 322, 389, 529, 778, 1058, 1127, 2254, 2723, 3703, 5446, 7406, 8947, 17894, 19061, 25921, 38122, 51842, 62629, 125258, 205781, 411562, 438403, 876806, 1440467, 2880934, 10083269, 20166538]

約数ペア:

[(1, 20166538), (2, 10083269), (7, 2880934), (14, 1440467), (23, 876806), (46, 438403), (49, 411562), (98, 205781), (161, 125258), (322, 62629), (389, 51842), (529, 38122), (778, 25921), (1058, 19061), (1127, 17894), (2254, 8947), (2723, 7406), (3703, 5446)]