18253431

素因数分解:

$3^6\times 7^3\times {\mathrm{73}}^1$

素因数の和:112

約数の個数: 56

約数和(自身を含む): 32352800

約数和(自身を除く): 14099369

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 73, 81, 147, 189, 219, 243, 343, 441, 511, 567, 657, 729, 1029, 1323, 1533, 1701, 1971, 3087, 3577, 3969, 4599, 5103, 5913, 9261, 10731, 11907, 13797, 17739, 25039, 27783, 32193, 35721, 41391, 53217, 75117, 83349, 96579, 124173, 225351, 250047, 289737, 372519, 676053, 869211, 2028159, 2607633, 6084477, 18253431]

約数ペア:

[(1, 18253431), (3, 6084477), (7, 2607633), (9, 2028159), (21, 869211), (27, 676053), (49, 372519), (63, 289737), (73, 250047), (81, 225351), (147, 124173), (189, 96579), (219, 83349), (243, 75117), (343, 53217), (441, 41391), (511, 35721), (567, 32193), (657, 27783), (729, 25039), (1029, 17739), (1323, 13797), (1533, 11907), (1701, 10731), (1971, 9261), (3087, 5913), (3577, 5103), (3969, 4599)]