21146608

素因数分解:

$2^4\times 7^1\times {\mathrm{349}}^1\times {\mathrm{541}}^1$

素因数の和:905

約数の個数: 40

約数和(自身を含む): 47045600

約数和(自身を除く): 25898992

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 349, 541, 698, 1082, 1396, 2164, 2443, 2792, 3787, 4328, 4886, 5584, 7574, 8656, 9772, 15148, 19544, 30296, 39088, 60592, 188809, 377618, 755236, 1321663, 1510472, 2643326, 3020944, 5286652, 10573304, 21146608]

約数ペア:

[(1, 21146608), (2, 10573304), (4, 5286652), (7, 3020944), (8, 2643326), (14, 1510472), (16, 1321663), (28, 755236), (56, 377618), (112, 188809), (349, 60592), (541, 39088), (698, 30296), (1082, 19544), (1396, 15148), (2164, 9772), (2443, 8656), (2792, 7574), (3787, 5584), (4328, 4886)]