20591711

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{337}}^1$

素因数の和:423

約数の個数: 24

約数和(自身を含む): 25431120

約数和(自身を除く): 4839409

約数列:

[1, 7, 29, 43, 49, 203, 301, 337, 1247, 1421, 2107, 2359, 8729, 9773, 14491, 16513, 61103, 68411, 101437, 420239, 478877, 710059, 2941673, 20591711]

約数ペア:

[(1, 20591711), (7, 2941673), (29, 710059), (43, 478877), (49, 420239), (203, 101437), (301, 68411), (337, 61103), (1247, 16513), (1421, 14491), (2107, 9773), (2359, 8729)]