51369759

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{907}}^1$

素因数の和:980

約数の個数: 48

約数和(自身を含む): 90654720

約数和(自身を除く): 39284961

約数列:

[1, 3, 7, 9, 21, 29, 31, 63, 87, 93, 203, 217, 261, 279, 609, 651, 899, 907, 1827, 1953, 2697, 2721, 6293, 6349, 8091, 8163, 18879, 19047, 26303, 28117, 56637, 57141, 78909, 84351, 184121, 196819, 236727, 253053, 552363, 590457, 815393, 1657089, 1771371, 2446179, 5707751, 7338537, 17123253, 51369759]

約数ペア:

[(1, 51369759), (3, 17123253), (7, 7338537), (9, 5707751), (21, 2446179), (29, 1771371), (31, 1657089), (63, 815393), (87, 590457), (93, 552363), (203, 253053), (217, 236727), (261, 196819), (279, 184121), (609, 84351), (651, 78909), (899, 57141), (907, 56637), (1827, 28117), (1953, 26303), (2697, 19047), (2721, 18879), (6293, 8163), (6349, 8091)]