21194656

素因数分解:

$2^5\times 7^3\times {\mathrm{1931}}^1$

素因数の和:1962

約数の個数: 48

約数和(自身を含む): 48686400

約数和(自身を除く): 27491744

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 224, 343, 392, 686, 784, 1372, 1568, 1931, 2744, 3862, 5488, 7724, 10976, 13517, 15448, 27034, 30896, 54068, 61792, 94619, 108136, 189238, 216272, 378476, 432544, 662333, 756952, 1324666, 1513904, 2649332, 3027808, 5298664, 10597328, 21194656]

約数ペア:

[(1, 21194656), (2, 10597328), (4, 5298664), (7, 3027808), (8, 2649332), (14, 1513904), (16, 1324666), (28, 756952), (32, 662333), (49, 432544), (56, 378476), (98, 216272), (112, 189238), (196, 108136), (224, 94619), (343, 61792), (392, 54068), (686, 30896), (784, 27034), (1372, 15448), (1568, 13517), (1931, 10976), (2744, 7724), (3862, 5488)]