21040952

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{661}}^1$

素因数の和:863

約数の個数: 32

約数和(自身を含む): 41467680

約数和(自身を除く): 20426728

約数列:

[1, 2, 4, 8, 23, 46, 92, 173, 184, 346, 661, 692, 1322, 1384, 2644, 3979, 5288, 7958, 15203, 15916, 30406, 31832, 60812, 114353, 121624, 228706, 457412, 914824, 2630119, 5260238, 10520476, 21040952]

約数ペア:

[(1, 21040952), (2, 10520476), (4, 5260238), (8, 2630119), (23, 914824), (46, 457412), (92, 228706), (173, 121624), (184, 114353), (346, 60812), (661, 31832), (692, 30406), (1322, 15916), (1384, 15203), (2644, 7958), (3979, 5288)]