18209205

素因数分解:

$3^5\times 5^1\times 7^1\times {\mathrm{2141}}^1$

素因数の和:2168

約数の個数: 48

約数和(自身を含む): 37425024

約数和(自身を除く): 19215819

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 243, 315, 405, 567, 945, 1215, 1701, 2141, 2835, 6423, 8505, 10705, 14987, 19269, 32115, 44961, 57807, 74935, 96345, 134883, 173421, 224805, 289035, 404649, 520263, 674415, 867105, 1213947, 2023245, 2601315, 3641841, 6069735, 18209205]

約数ペア:

[(1, 18209205), (3, 6069735), (5, 3641841), (7, 2601315), (9, 2023245), (15, 1213947), (21, 867105), (27, 674415), (35, 520263), (45, 404649), (63, 289035), (81, 224805), (105, 173421), (135, 134883), (189, 96345), (243, 74935), (315, 57807), (405, 44961), (567, 32115), (945, 19269), (1215, 14987), (1701, 10705), (2141, 8505), (2835, 6423)]