21030824

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{193}}^1\times {\mathrm{257}}^1$

素因数の和:509

約数の個数: 32

約数和(自身を含む): 40542120

約数和(自身を除く): 19511296

約数列:

[1, 2, 4, 8, 53, 106, 193, 212, 257, 386, 424, 514, 772, 1028, 1544, 2056, 10229, 13621, 20458, 27242, 40916, 49601, 54484, 81832, 99202, 108968, 198404, 396808, 2628853, 5257706, 10515412, 21030824]

約数ペア:

[(1, 21030824), (2, 10515412), (4, 5257706), (8, 2628853), (53, 396808), (106, 198404), (193, 108968), (212, 99202), (257, 81832), (386, 54484), (424, 49601), (514, 40916), (772, 27242), (1028, 20458), (1544, 13621), (2056, 10229)]