27997963

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:140

約数の個数: 48

約数和(自身を含む): 38167200

約数和(自身を除く): 10169237

約数列:

[1, 7, 17, 19, 29, 49, 61, 119, 133, 203, 323, 427, 493, 551, 833, 931, 1037, 1159, 1421, 1769, 2261, 2989, 3451, 3857, 7259, 8113, 9367, 12383, 15827, 19703, 24157, 26999, 30073, 33611, 50813, 56791, 65569, 86681, 137921, 210511, 235277, 458983, 571387, 965447, 1473577, 1646939, 3999709, 27997963]

約数ペア:

[(1, 27997963), (7, 3999709), (17, 1646939), (19, 1473577), (29, 965447), (49, 571387), (61, 458983), (119, 235277), (133, 210511), (203, 137921), (323, 86681), (427, 65569), (493, 56791), (551, 50813), (833, 33611), (931, 30073), (1037, 26999), (1159, 24157), (1421, 19703), (1769, 15827), (2261, 12383), (2989, 9367), (3451, 8113), (3857, 7259)]