128837538

素因数分解:

$2^1\times 3^2\times {\mathrm{349}}^1\times {\mathrm{20509}}^1$

素因数の和:20866

約数の個数: 24

約数和(自身を含む): 279961500

約数和(自身を除く): 151123962

約数列:

[1, 2, 3, 6, 9, 18, 349, 698, 1047, 2094, 3141, 6282, 20509, 41018, 61527, 123054, 184581, 369162, 7157641, 14315282, 21472923, 42945846, 64418769, 128837538]

約数ペア:

[(1, 128837538), (2, 64418769), (3, 42945846), (6, 21472923), (9, 14315282), (18, 7157641), (349, 369162), (698, 184581), (1047, 123054), (2094, 61527), (3141, 41018), (6282, 20509)]