20452047

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:164

約数の個数: 64

約数和(自身を含む): 36495360

約数和(自身を除く): 16043313

約数列:

[1, 3, 7, 11, 21, 29, 33, 43, 71, 77, 87, 129, 203, 213, 231, 301, 319, 473, 497, 609, 781, 903, 957, 1247, 1419, 1491, 2059, 2233, 2343, 3053, 3311, 3741, 5467, 6177, 6699, 8729, 9159, 9933, 13717, 14413, 16401, 21371, 22649, 26187, 33583, 41151, 43239, 64113, 67947, 88537, 96019, 100749, 158543, 235081, 265611, 288057, 475629, 619759, 705243, 973907, 1859277, 2921721, 6817349, 20452047]

約数ペア:

[(1, 20452047), (3, 6817349), (7, 2921721), (11, 1859277), (21, 973907), (29, 705243), (33, 619759), (43, 475629), (71, 288057), (77, 265611), (87, 235081), (129, 158543), (203, 100749), (213, 96019), (231, 88537), (301, 67947), (319, 64113), (473, 43239), (497, 41151), (609, 33583), (781, 26187), (903, 22649), (957, 21371), (1247, 16401), (1419, 14413), (1491, 13717), (2059, 9933), (2233, 9159), (2343, 8729), (3053, 6699), (3311, 6177), (3741, 5467)]