18514244

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 38384640

約数和(自身を除く): 19870396

約数列:

[1, 2, 4, 7, 14, 28, 67, 71, 134, 139, 142, 268, 278, 284, 469, 497, 556, 938, 973, 994, 1876, 1946, 1988, 3892, 4757, 9313, 9514, 9869, 18626, 19028, 19738, 33299, 37252, 39476, 65191, 66598, 69083, 130382, 133196, 138166, 260764, 276332, 661223, 1322446, 2644892, 4628561, 9257122, 18514244]

約数ペア:

[(1, 18514244), (2, 9257122), (4, 4628561), (7, 2644892), (14, 1322446), (28, 661223), (67, 276332), (71, 260764), (134, 138166), (139, 133196), (142, 130382), (268, 69083), (278, 66598), (284, 65191), (469, 39476), (497, 37252), (556, 33299), (938, 19738), (973, 19028), (994, 18626), (1876, 9869), (1946, 9514), (1988, 9313), (3892, 4757)]