12921244

素因数分解:

$2^2\times 7^1\times {\mathrm{541}}^1\times {\mathrm{853}}^1$

素因数の和:1405

約数の個数: 24

約数和(自身を含む): 25920608

約数和(自身を除く): 12999364

約数列:

[1, 2, 4, 7, 14, 28, 541, 853, 1082, 1706, 2164, 3412, 3787, 5971, 7574, 11942, 15148, 23884, 461473, 922946, 1845892, 3230311, 6460622, 12921244]

約数ペア:

[(1, 12921244), (2, 6460622), (4, 3230311), (7, 1845892), (14, 922946), (28, 461473), (541, 23884), (853, 15148), (1082, 11942), (1706, 7574), (2164, 5971), (3412, 3787)]