19911136

素因数分解:

$2^5\times 7^1\times {\mathrm{103}}^1\times {\mathrm{863}}^1$

素因数の和:983

約数の個数: 48

約数和(自身を含む): 45287424

約数和(自身を除く): 25376288

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 103, 112, 206, 224, 412, 721, 824, 863, 1442, 1648, 1726, 2884, 3296, 3452, 5768, 6041, 6904, 11536, 12082, 13808, 23072, 24164, 27616, 48328, 88889, 96656, 177778, 193312, 355556, 622223, 711112, 1244446, 1422224, 2488892, 2844448, 4977784, 9955568, 19911136]

約数ペア:

[(1, 19911136), (2, 9955568), (4, 4977784), (7, 2844448), (8, 2488892), (14, 1422224), (16, 1244446), (28, 711112), (32, 622223), (56, 355556), (103, 193312), (112, 177778), (206, 96656), (224, 88889), (412, 48328), (721, 27616), (824, 24164), (863, 23072), (1442, 13808), (1648, 12082), (1726, 11536), (2884, 6904), (3296, 6041), (3452, 5768)]