21041936

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{449}}^1$

素因数の和:587

約数の個数: 40

約数和(自身を含む): 42687000

約数和(自身を除く): 21645064

約数列:

[1, 2, 4, 8, 16, 29, 58, 101, 116, 202, 232, 404, 449, 464, 808, 898, 1616, 1796, 2929, 3592, 5858, 7184, 11716, 13021, 23432, 26042, 45349, 46864, 52084, 90698, 104168, 181396, 208336, 362792, 725584, 1315121, 2630242, 5260484, 10520968, 21041936]

約数ペア:

[(1, 21041936), (2, 10520968), (4, 5260484), (8, 2630242), (16, 1315121), (29, 725584), (58, 362792), (101, 208336), (116, 181396), (202, 104168), (232, 90698), (404, 52084), (449, 46864), (464, 45349), (808, 26042), (898, 23432), (1616, 13021), (1796, 11716), (2929, 7184), (3592, 5858)]