19935488

素因数分解:

$2^8\times {\mathrm{43}}^1\times {\mathrm{1811}}^1$

素因数の和:1870

約数の個数: 36

約数和(自身を含む): 40741008

約数和(自身を除く): 20805520

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 128, 172, 256, 344, 688, 1376, 1811, 2752, 3622, 5504, 7244, 11008, 14488, 28976, 57952, 77873, 115904, 155746, 231808, 311492, 463616, 622984, 1245968, 2491936, 4983872, 9967744, 19935488]

約数ペア:

[(1, 19935488), (2, 9967744), (4, 4983872), (8, 2491936), (16, 1245968), (32, 622984), (43, 463616), (64, 311492), (86, 231808), (128, 155746), (172, 115904), (256, 77873), (344, 57952), (688, 28976), (1376, 14488), (1811, 11008), (2752, 7244), (3622, 5504)]