20897741312

素因数分解:

$2^9\times 7^1\times {\mathrm{43}}^1\times {\mathrm{135601}}^1$

素因数の和:135669

約数の個数: 80

約数和(自身を含む): 48829737792

約数和(自身を除く): 27931996480

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 56, 64, 86, 112, 128, 172, 224, 256, 301, 344, 448, 512, 602, 688, 896, 1204, 1376, 1792, 2408, 2752, 3584, 4816, 5504, 9632, 11008, 19264, 22016, 38528, 77056, 135601, 154112, 271202, 542404, 949207, 1084808, 1898414, 2169616, 3796828, 4339232, 5830843, 7593656, 8678464, 11661686, 15187312, 17356928, 23323372, 30374624, 34713856, 40815901, 46646744, 60749248, 69427712, 81631802, 93293488, 121498496, 163263604, 186586976, 242996992, 326527208, 373173952, 485993984, 653054416, 746347904, 1306108832, 1492695808, 2612217664, 2985391616, 5224435328, 10448870656, 20897741312]

約数ペア:

[(1, 20897741312), (2, 10448870656), (4, 5224435328), (7, 2985391616), (8, 2612217664), (14, 1492695808), (16, 1306108832), (28, 746347904), (32, 653054416), (43, 485993984), (56, 373173952), (64, 326527208), (86, 242996992), (112, 186586976), (128, 163263604), (172, 121498496), (224, 93293488), (256, 81631802), (301, 69427712), (344, 60749248), (448, 46646744), (512, 40815901), (602, 34713856), (688, 30374624), (896, 23323372), (1204, 17356928), (1376, 15187312), (1792, 11661686), (2408, 8678464), (2752, 7593656), (3584, 5830843), (4816, 4339232), (5504, 3796828), (9632, 2169616), (11008, 1898414), (19264, 1084808), (22016, 949207), (38528, 542404), (77056, 271202), (135601, 154112)]