18665805

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^2\times {\mathrm{443}}^1$

素因数の和:557

約数の個数: 24

約数和(自身を含む): 30508128

約数和(自身を除く): 11842323

約数列:

[1, 3, 5, 15, 53, 159, 265, 443, 795, 1329, 2215, 2809, 6645, 8427, 14045, 23479, 42135, 70437, 117395, 352185, 1244387, 3733161, 6221935, 18665805]

約数ペア:

[(1, 18665805), (3, 6221935), (5, 3733161), (15, 1244387), (53, 352185), (159, 117395), (265, 70437), (443, 42135), (795, 23479), (1329, 14045), (2215, 8427), (2809, 6645)]