21354746

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1867}}^1$

素因数の和:1938

約数の個数: 32

約数和(自身を含む): 39452160

約数和(自身を除く): 18097414

約数列:

[1, 2, 7, 14, 19, 38, 43, 86, 133, 266, 301, 602, 817, 1634, 1867, 3734, 5719, 11438, 13069, 26138, 35473, 70946, 80281, 160562, 248311, 496622, 561967, 1123934, 1525339, 3050678, 10677373, 21354746]

約数ペア:

[(1, 21354746), (2, 10677373), (7, 3050678), (14, 1525339), (19, 1123934), (38, 561967), (43, 496622), (86, 248311), (133, 160562), (266, 80281), (301, 70946), (602, 35473), (817, 26138), (1634, 13069), (1867, 11438), (3734, 5719)]