51970581

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1$

素因数の和:135

約数の個数: 72

約数和(自身を含む): 90515880

約数和(自身を除く): 38545299

約数列:

[1, 3, 9, 13, 17, 29, 39, 51, 53, 87, 117, 153, 159, 221, 261, 289, 377, 477, 493, 663, 689, 867, 901, 1131, 1479, 1537, 1989, 2067, 2601, 2703, 3393, 3757, 4437, 4611, 6201, 6409, 8109, 8381, 11271, 11713, 13833, 15317, 19227, 19981, 25143, 26129, 33813, 35139, 45951, 57681, 59943, 75429, 78387, 105417, 108953, 137853, 179829, 199121, 235161, 326859, 339677, 444193, 597363, 980577, 1019031, 1332579, 1792089, 3057093, 3997737, 5774509, 17323527, 51970581]

約数ペア:

[(1, 51970581), (3, 17323527), (9, 5774509), (13, 3997737), (17, 3057093), (29, 1792089), (39, 1332579), (51, 1019031), (53, 980577), (87, 597363), (117, 444193), (153, 339677), (159, 326859), (221, 235161), (261, 199121), (289, 179829), (377, 137853), (477, 108953), (493, 105417), (663, 78387), (689, 75429), (867, 59943), (901, 57681), (1131, 45951), (1479, 35139), (1537, 33813), (1989, 26129), (2067, 25143), (2601, 19981), (2703, 19227), (3393, 15317), (3757, 13833), (4437, 11713), (4611, 11271), (6201, 8381), (6409, 8109)]