20216956053

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{7687}}^1$

素因数の和:7906

約数の個数: 64

約数和(自身を含む): 33477857280

約数和(自身を除く): 13260901227

約数列:

[1, 3, 7, 17, 21, 51, 53, 119, 139, 159, 357, 371, 417, 901, 973, 1113, 2363, 2703, 2919, 6307, 7089, 7367, 7687, 16541, 18921, 22101, 23061, 49623, 51569, 53809, 125239, 130679, 154707, 161427, 375717, 392037, 407411, 876673, 914753, 1068493, 1222233, 2630019, 2744259, 2851877, 3205479, 6925987, 7479451, 8555631, 18164381, 20777961, 22438353, 48481909, 54493143, 56630129, 127150667, 145445727, 169890387, 381452001, 396410903, 962712193, 1189232709, 2888136579, 6738985351, 20216956053]

約数ペア:

[(1, 20216956053), (3, 6738985351), (7, 2888136579), (17, 1189232709), (21, 962712193), (51, 396410903), (53, 381452001), (119, 169890387), (139, 145445727), (159, 127150667), (357, 56630129), (371, 54493143), (417, 48481909), (901, 22438353), (973, 20777961), (1113, 18164381), (2363, 8555631), (2703, 7479451), (2919, 6925987), (6307, 3205479), (7089, 2851877), (7367, 2744259), (7687, 2630019), (16541, 1222233), (18921, 1068493), (22101, 914753), (23061, 876673), (49623, 407411), (51569, 392037), (53809, 375717), (125239, 161427), (130679, 154707)]