21441664

素因数分解:

$2^7\times {\mathrm{127}}^1\times {\mathrm{1319}}^1$

素因数の和:1460

約数の個数: 32

約数和(自身を含む): 43084800

約数和(自身を除く): 21643136

約数列:

[1, 2, 4, 8, 16, 32, 64, 127, 128, 254, 508, 1016, 1319, 2032, 2638, 4064, 5276, 8128, 10552, 16256, 21104, 42208, 84416, 167513, 168832, 335026, 670052, 1340104, 2680208, 5360416, 10720832, 21441664]

約数ペア:

[(1, 21441664), (2, 10720832), (4, 5360416), (8, 2680208), (16, 1340104), (32, 670052), (64, 335026), (127, 168832), (128, 167513), (254, 84416), (508, 42208), (1016, 21104), (1319, 16256), (2032, 10552), (2638, 8128), (4064, 5276)]