18891104

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{13729}}^1$

素因数の和:13782

約数の個数: 24

約数和(自身を含む): 38059560

約数和(自身を除く): 19168456

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 172, 344, 688, 1376, 13729, 27458, 54916, 109832, 219664, 439328, 590347, 1180694, 2361388, 4722776, 9445552, 18891104]

約数ペア:

[(1, 18891104), (2, 9445552), (4, 4722776), (8, 2361388), (16, 1180694), (32, 590347), (43, 439328), (86, 219664), (172, 109832), (344, 54916), (688, 27458), (1376, 13729)]