21876736

素因数分解:

$2^{12}\times 7^2\times {\mathrm{109}}^1$

素因数の和:147

約数の個数: 78

約数和(自身を含む): 51357570

約数和(自身を除く): 29480834

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 109, 112, 128, 196, 218, 224, 256, 392, 436, 448, 512, 763, 784, 872, 896, 1024, 1526, 1568, 1744, 1792, 2048, 3052, 3136, 3488, 3584, 4096, 5341, 6104, 6272, 6976, 7168, 10682, 12208, 12544, 13952, 14336, 21364, 24416, 25088, 27904, 28672, 42728, 48832, 50176, 55808, 85456, 97664, 100352, 111616, 170912, 195328, 200704, 223232, 341824, 390656, 446464, 683648, 781312, 1367296, 1562624, 2734592, 3125248, 5469184, 10938368, 21876736]

約数ペア:

[(1, 21876736), (2, 10938368), (4, 5469184), (7, 3125248), (8, 2734592), (14, 1562624), (16, 1367296), (28, 781312), (32, 683648), (49, 446464), (56, 390656), (64, 341824), (98, 223232), (109, 200704), (112, 195328), (128, 170912), (196, 111616), (218, 100352), (224, 97664), (256, 85456), (392, 55808), (436, 50176), (448, 48832), (512, 42728), (763, 28672), (784, 27904), (872, 25088), (896, 24416), (1024, 21364), (1526, 14336), (1568, 13952), (1744, 12544), (1792, 12208), (2048, 10682), (3052, 7168), (3136, 6976), (3488, 6272), (3584, 6104), (4096, 5341)]