21625856

素因数分解:

$2^{10}\times 7^2\times {\mathrm{431}}^1$

素因数の和:465

約数の個数: 66

約数和(自身を含む): 50405328

約数和(自身を除く): 28779472

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 256, 392, 431, 448, 512, 784, 862, 896, 1024, 1568, 1724, 1792, 3017, 3136, 3448, 3584, 6034, 6272, 6896, 7168, 12068, 12544, 13792, 21119, 24136, 25088, 27584, 42238, 48272, 50176, 55168, 84476, 96544, 110336, 168952, 193088, 220672, 337904, 386176, 441344, 675808, 772352, 1351616, 1544704, 2703232, 3089408, 5406464, 10812928, 21625856]

約数ペア:

[(1, 21625856), (2, 10812928), (4, 5406464), (7, 3089408), (8, 2703232), (14, 1544704), (16, 1351616), (28, 772352), (32, 675808), (49, 441344), (56, 386176), (64, 337904), (98, 220672), (112, 193088), (128, 168952), (196, 110336), (224, 96544), (256, 84476), (392, 55168), (431, 50176), (448, 48272), (512, 42238), (784, 27584), (862, 25088), (896, 24136), (1024, 21119), (1568, 13792), (1724, 12544), (1792, 12068), (3017, 7168), (3136, 6896), (3448, 6272), (3584, 6034)]