20397568

素因数分解:

$2^9\times {\mathrm{39839}}^1$

素因数の和:39857

約数の個数: 20

約数和(自身を含む): 40756320

約数和(自身を除く): 20358752

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 39839, 79678, 159356, 318712, 637424, 1274848, 2549696, 5099392, 10198784, 20397568]

約数ペア:

[(1, 20397568), (2, 10198784), (4, 5099392), (8, 2549696), (16, 1274848), (32, 637424), (64, 318712), (128, 159356), (256, 79678), (512, 39839)]