21489846

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{3259}}^1$

素因数の和:3428

約数の個数: 32

約数和(自身を含む): 49447680

約数和(自身を除く): 27957834

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 157, 314, 471, 942, 1099, 2198, 3259, 3297, 6518, 6594, 9777, 19554, 22813, 45626, 68439, 136878, 511663, 1023326, 1534989, 3069978, 3581641, 7163282, 10744923, 21489846]

約数ペア:

[(1, 21489846), (2, 10744923), (3, 7163282), (6, 3581641), (7, 3069978), (14, 1534989), (21, 1023326), (42, 511663), (157, 136878), (314, 68439), (471, 45626), (942, 22813), (1099, 19554), (2198, 9777), (3259, 6594), (3297, 6518)]