20898812

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{193}}^1$

素因数の和:338

約数の個数: 48

約数和(自身を含む): 42239232

約数和(自身を除く): 21340420

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 107, 193, 214, 253, 386, 428, 506, 772, 1012, 1177, 2123, 2354, 2461, 4246, 4439, 4708, 4922, 8492, 8878, 9844, 17756, 20651, 27071, 41302, 48829, 54142, 82604, 97658, 108284, 195316, 227161, 454322, 474973, 908644, 949946, 1899892, 5224703, 10449406, 20898812]

約数ペア:

[(1, 20898812), (2, 10449406), (4, 5224703), (11, 1899892), (22, 949946), (23, 908644), (44, 474973), (46, 454322), (92, 227161), (107, 195316), (193, 108284), (214, 97658), (253, 82604), (386, 54142), (428, 48829), (506, 41302), (772, 27071), (1012, 20651), (1177, 17756), (2123, 9844), (2354, 8878), (2461, 8492), (4246, 4922), (4439, 4708)]