28213108

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{659}}^1$

素因数の和:820

約数の個数: 48

約数和(自身を含む): 62092800

約数和(自身を除く): 33879692

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 139, 154, 278, 308, 556, 659, 973, 1318, 1529, 1946, 2636, 3058, 3892, 4613, 6116, 7249, 9226, 10703, 14498, 18452, 21406, 28996, 42812, 50743, 91601, 101486, 183202, 202972, 366404, 641207, 1007611, 1282414, 2015222, 2564828, 4030444, 7053277, 14106554, 28213108]

約数ペア:

[(1, 28213108), (2, 14106554), (4, 7053277), (7, 4030444), (11, 2564828), (14, 2015222), (22, 1282414), (28, 1007611), (44, 641207), (77, 366404), (139, 202972), (154, 183202), (278, 101486), (308, 91601), (556, 50743), (659, 42812), (973, 28996), (1318, 21406), (1529, 18452), (1946, 14498), (2636, 10703), (3058, 9226), (3892, 7249), (4613, 6116)]