20516238

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{251}}^1$

素因数の和:517

約数の個数: 48

約数和(自身を含む): 47174400

約数和(自身を除く): 26658162

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 239, 251, 342, 478, 502, 717, 753, 1434, 1506, 2151, 2259, 4302, 4518, 4541, 4769, 9082, 9538, 13623, 14307, 27246, 28614, 40869, 42921, 59989, 81738, 85842, 119978, 179967, 359934, 539901, 1079802, 1139791, 2279582, 3419373, 6838746, 10258119, 20516238]

約数ペア:

[(1, 20516238), (2, 10258119), (3, 6838746), (6, 3419373), (9, 2279582), (18, 1139791), (19, 1079802), (38, 539901), (57, 359934), (114, 179967), (171, 119978), (239, 85842), (251, 81738), (342, 59989), (478, 42921), (502, 40869), (717, 28614), (753, 27246), (1434, 14307), (1506, 13623), (2151, 9538), (2259, 9082), (4302, 4769), (4518, 4541)]