18180316

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{881}}^1$

素因数の和:970

約数の個数: 48

約数和(自身を含む): 40303872

約数和(自身を除く): 22123556

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 67, 77, 134, 154, 268, 308, 469, 737, 881, 938, 1474, 1762, 1876, 2948, 3524, 5159, 6167, 9691, 10318, 12334, 19382, 20636, 24668, 38764, 59027, 67837, 118054, 135674, 236108, 271348, 413189, 649297, 826378, 1298594, 1652756, 2597188, 4545079, 9090158, 18180316]

約数ペア:

[(1, 18180316), (2, 9090158), (4, 4545079), (7, 2597188), (11, 1652756), (14, 1298594), (22, 826378), (28, 649297), (44, 413189), (67, 271348), (77, 236108), (134, 135674), (154, 118054), (268, 67837), (308, 59027), (469, 38764), (737, 24668), (881, 20636), (938, 19382), (1474, 12334), (1762, 10318), (1876, 9691), (2948, 6167), (3524, 5159)]