28903581

素因数分解:

$3^3\times 7^3\times {\mathrm{3121}}^1$

素因数の和:3151

約数の個数: 32

約数和(自身を含む): 49952000

約数和(自身を除く): 21048419

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 343, 441, 1029, 1323, 3087, 3121, 9261, 9363, 21847, 28089, 65541, 84267, 152929, 196623, 458787, 589869, 1070503, 1376361, 3211509, 4129083, 9634527, 28903581]

約数ペア:

[(1, 28903581), (3, 9634527), (7, 4129083), (9, 3211509), (21, 1376361), (27, 1070503), (49, 589869), (63, 458787), (147, 196623), (189, 152929), (343, 84267), (441, 65541), (1029, 28089), (1323, 21847), (3087, 9363), (3121, 9261)]