258891003

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1\times {\mathrm{421}}^1$

素因数の和:704

約数の個数: 48

約数和(自身を含む): 440284416

約数和(自身を除く): 181393413

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 227, 301, 387, 421, 681, 903, 1263, 1589, 2043, 2709, 2947, 3789, 4767, 8841, 9761, 14301, 18103, 26523, 29283, 54309, 68327, 87849, 95567, 126721, 162927, 204981, 286701, 380163, 614943, 668969, 860103, 1140489, 2006907, 4109381, 6020721, 12328143, 28765667, 36984429, 86297001, 258891003]

約数ペア:

[(1, 258891003), (3, 86297001), (7, 36984429), (9, 28765667), (21, 12328143), (43, 6020721), (63, 4109381), (129, 2006907), (227, 1140489), (301, 860103), (387, 668969), (421, 614943), (681, 380163), (903, 286701), (1263, 204981), (1589, 162927), (2043, 126721), (2709, 95567), (2947, 87849), (3789, 68327), (4767, 54309), (8841, 29283), (9761, 26523), (14301, 18103)]