18921376

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{13751}}^1$

素因数の和:13804

約数の個数: 24

約数和(自身を含む): 38120544

約数和(自身を除く): 19199168

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 172, 344, 688, 1376, 13751, 27502, 55004, 110008, 220016, 440032, 591293, 1182586, 2365172, 4730344, 9460688, 18921376]

約数ペア:

[(1, 18921376), (2, 9460688), (4, 4730344), (8, 2365172), (16, 1182586), (32, 591293), (43, 440032), (86, 220016), (172, 110008), (344, 55004), (688, 27502), (1376, 13751)]