18997335

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{6701}}^1$

素因数の和:6725

約数の個数: 40

約数和(自身を含む): 38925216

約数和(自身を除く): 19927881

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 315, 405, 567, 945, 2835, 6701, 20103, 33505, 46907, 60309, 100515, 140721, 180927, 234535, 301545, 422163, 542781, 703605, 904635, 1266489, 2110815, 2713905, 3799467, 6332445, 18997335]

約数ペア:

[(1, 18997335), (3, 6332445), (5, 3799467), (7, 2713905), (9, 2110815), (15, 1266489), (21, 904635), (27, 703605), (35, 542781), (45, 422163), (63, 301545), (81, 234535), (105, 180927), (135, 140721), (189, 100515), (315, 60309), (405, 46907), (567, 33505), (945, 20103), (2835, 6701)]