18509337

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{307}}^1$

素因数の和:363

約数の個数: 64

約数和(自身を含む): 35481600

約数和(自身を除く): 16972263

約数列:

[1, 3, 7, 9, 11, 21, 27, 29, 33, 63, 77, 87, 99, 189, 203, 231, 261, 297, 307, 319, 609, 693, 783, 921, 957, 1827, 2079, 2149, 2233, 2763, 2871, 3377, 5481, 6447, 6699, 8289, 8613, 8903, 10131, 19341, 20097, 23639, 26709, 30393, 58023, 60291, 62321, 70917, 80127, 91179, 97933, 186963, 212751, 240381, 293799, 560889, 638253, 685531, 881397, 1682667, 2056593, 2644191, 6169779, 18509337]

約数ペア:

[(1, 18509337), (3, 6169779), (7, 2644191), (9, 2056593), (11, 1682667), (21, 881397), (27, 685531), (29, 638253), (33, 560889), (63, 293799), (77, 240381), (87, 212751), (99, 186963), (189, 97933), (203, 91179), (231, 80127), (261, 70917), (297, 62321), (307, 60291), (319, 58023), (609, 30393), (693, 26709), (783, 23639), (921, 20097), (957, 19341), (1827, 10131), (2079, 8903), (2149, 8613), (2233, 8289), (2763, 6699), (2871, 6447), (3377, 5481)]