21704704

素因数分解:

$2^{12}\times 7^1\times {\mathrm{757}}^1$

素因数の和:788

約数の個数: 52

約数和(自身を含む): 49670224

約数和(自身を除く): 27965520

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 757, 896, 1024, 1514, 1792, 2048, 3028, 3584, 4096, 5299, 6056, 7168, 10598, 12112, 14336, 21196, 24224, 28672, 42392, 48448, 84784, 96896, 169568, 193792, 339136, 387584, 678272, 775168, 1356544, 1550336, 2713088, 3100672, 5426176, 10852352, 21704704]

約数ペア:

[(1, 21704704), (2, 10852352), (4, 5426176), (7, 3100672), (8, 2713088), (14, 1550336), (16, 1356544), (28, 775168), (32, 678272), (56, 387584), (64, 339136), (112, 193792), (128, 169568), (224, 96896), (256, 84784), (448, 48448), (512, 42392), (757, 28672), (896, 24224), (1024, 21196), (1514, 14336), (1792, 12112), (2048, 10598), (3028, 7168), (3584, 6056), (4096, 5299)]