19634657581

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{239}}^1\times {\mathrm{271}}^1$

素因数の和:686

約数の個数: 64

約数和(自身を含む): 25669140480

約数和(自身を除く): 6034482899

約数列:

[1, 7, 11, 31, 77, 127, 217, 239, 271, 341, 889, 1397, 1673, 1897, 2387, 2629, 2981, 3937, 7409, 8401, 9779, 18403, 20867, 27559, 30353, 34417, 43307, 51863, 58807, 64769, 81499, 92411, 212471, 240919, 303149, 333883, 378587, 453383, 570493, 646877, 712459, 940943, 1066927, 2007839, 2337181, 2650109, 4987213, 6586601, 7468489, 8225663, 10350373, 11736197, 14054873, 22086229, 57579641, 72452611, 82153379, 90482293, 154603603, 254995553, 633376051, 1784968871, 2804951083, 19634657581]

約数ペア:

[(1, 19634657581), (7, 2804951083), (11, 1784968871), (31, 633376051), (77, 254995553), (127, 154603603), (217, 90482293), (239, 82153379), (271, 72452611), (341, 57579641), (889, 22086229), (1397, 14054873), (1673, 11736197), (1897, 10350373), (2387, 8225663), (2629, 7468489), (2981, 6586601), (3937, 4987213), (7409, 2650109), (8401, 2337181), (9779, 2007839), (18403, 1066927), (20867, 940943), (27559, 712459), (30353, 646877), (34417, 570493), (43307, 453383), (51863, 378587), (58807, 333883), (64769, 303149), (81499, 240919), (92411, 212471)]