18112005

素因数分解:

$3^6\times 5^1\times {\mathrm{4969}}^1$

素因数の和:4992

約数の個数: 28

約数和(自身を含む): 32593260

約数和(自身を除く): 14481255

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 3645, 4969, 14907, 24845, 44721, 74535, 134163, 223605, 402489, 670815, 1207467, 2012445, 3622401, 6037335, 18112005]

約数ペア:

[(1, 18112005), (3, 6037335), (5, 3622401), (9, 2012445), (15, 1207467), (27, 670815), (45, 402489), (81, 223605), (135, 134163), (243, 74535), (405, 44721), (729, 24845), (1215, 14907), (3645, 4969)]