398223

素因数分解:

$3^3\times 7^3\times {\mathrm{43}}^1$

素因数の和:73

約数の個数: 32

約数和(自身を含む): 704000

約数和(自身を除く): 305777

約数列:

[1, 3, 7, 9, 21, 27, 43, 49, 63, 129, 147, 189, 301, 343, 387, 441, 903, 1029, 1161, 1323, 2107, 2709, 3087, 6321, 8127, 9261, 14749, 18963, 44247, 56889, 132741, 398223]

約数ペア:

[(1, 398223), (3, 132741), (7, 56889), (9, 44247), (21, 18963), (27, 14749), (43, 9261), (49, 8127), (63, 6321), (129, 3087), (147, 2709), (189, 2107), (301, 1323), (343, 1161), (387, 1029), (441, 903)]