18991616

素因数分解:

$2^9\times 7^2\times {\mathrm{757}}^1$

素因数の和:789

約数の個数: 60

約数和(自身を含む): 44199738

約数和(自身を除く): 25208122

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 256, 392, 448, 512, 757, 784, 896, 1514, 1568, 1792, 3028, 3136, 3584, 5299, 6056, 6272, 10598, 12112, 12544, 21196, 24224, 25088, 37093, 42392, 48448, 74186, 84784, 96896, 148372, 169568, 193792, 296744, 339136, 387584, 593488, 678272, 1186976, 1356544, 2373952, 2713088, 4747904, 9495808, 18991616]

約数ペア:

[(1, 18991616), (2, 9495808), (4, 4747904), (7, 2713088), (8, 2373952), (14, 1356544), (16, 1186976), (28, 678272), (32, 593488), (49, 387584), (56, 339136), (64, 296744), (98, 193792), (112, 169568), (128, 148372), (196, 96896), (224, 84784), (256, 74186), (392, 48448), (448, 42392), (512, 37093), (757, 25088), (784, 24224), (896, 21196), (1514, 12544), (1568, 12112), (1792, 10598), (3028, 6272), (3136, 6056), (3584, 5299)]