20891256

素因数分解:

$2^3\times 3^1\times {\mathrm{541}}^1\times {\mathrm{1609}}^1$

素因数の和:2159

約数の個数: 32

約数和(自身を含む): 52357200

約数和(自身を除く): 31465944

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 541, 1082, 1609, 1623, 2164, 3218, 3246, 4328, 4827, 6436, 6492, 9654, 12872, 12984, 19308, 38616, 870469, 1740938, 2611407, 3481876, 5222814, 6963752, 10445628, 20891256]

約数ペア:

[(1, 20891256), (2, 10445628), (3, 6963752), (4, 5222814), (6, 3481876), (8, 2611407), (12, 1740938), (24, 870469), (541, 38616), (1082, 19308), (1609, 12984), (1623, 12872), (2164, 9654), (3218, 6492), (3246, 6436), (4328, 4827)]