18222561

素因数分解:

$3^2\times 7^3\times {\mathrm{5903}}^1$

素因数の和:5930

約数の個数: 24

約数和(自身を含む): 30700800

約数和(自身を除く): 12478239

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 5903, 17709, 41321, 53127, 123963, 289247, 371889, 867741, 2024729, 2603223, 6074187, 18222561]

約数ペア:

[(1, 18222561), (3, 6074187), (7, 2603223), (9, 2024729), (21, 867741), (49, 371889), (63, 289247), (147, 123963), (343, 53127), (441, 41321), (1029, 17709), (3087, 5903)]