20905763186

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{18427}}^1$

素因数の和:18639

約数の個数: 64

約数和(自身を含む): 40122915840

約数和(自身を除く): 19217152654

約数列:

[1, 2, 7, 11, 14, 22, 53, 77, 106, 139, 154, 278, 371, 583, 742, 973, 1166, 1529, 1946, 3058, 4081, 7367, 8162, 10703, 14734, 18427, 21406, 36854, 51569, 81037, 103138, 128989, 162074, 202697, 257978, 405394, 567259, 976631, 1134518, 1418879, 1953262, 2561353, 2837758, 5122706, 6836417, 10742941, 13672834, 17929471, 21485882, 28174883, 35858942, 56349766, 75200587, 135751709, 150401174, 197224181, 271503418, 394448362, 950261963, 1493268799, 1900523926, 2986537598, 10452881593, 20905763186]

約数ペア:

[(1, 20905763186), (2, 10452881593), (7, 2986537598), (11, 1900523926), (14, 1493268799), (22, 950261963), (53, 394448362), (77, 271503418), (106, 197224181), (139, 150401174), (154, 135751709), (278, 75200587), (371, 56349766), (583, 35858942), (742, 28174883), (973, 21485882), (1166, 17929471), (1529, 13672834), (1946, 10742941), (3058, 6836417), (4081, 5122706), (7367, 2837758), (8162, 2561353), (10703, 1953262), (14734, 1418879), (18427, 1134518), (21406, 976631), (36854, 567259), (51569, 405394), (81037, 257978), (103138, 202697), (128989, 162074)]