21151352

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{827}}^1$

素因数の和:995

約数の個数: 32

約数和(自身を含む): 41731200

約数和(自身を除く): 20579848

約数列:

[1, 2, 4, 8, 23, 46, 92, 139, 184, 278, 556, 827, 1112, 1654, 3197, 3308, 6394, 6616, 12788, 19021, 25576, 38042, 76084, 114953, 152168, 229906, 459812, 919624, 2643919, 5287838, 10575676, 21151352]

約数ペア:

[(1, 21151352), (2, 10575676), (4, 5287838), (8, 2643919), (23, 919624), (46, 459812), (92, 229906), (139, 152168), (184, 114953), (278, 76084), (556, 38042), (827, 25576), (1112, 19021), (1654, 12788), (3197, 6616), (3308, 6394)]