20419884

素因数分解:

$2^2\times 3^3\times {\mathrm{71}}^1\times {\mathrm{2663}}^1$

素因数の和:2747

約数の個数: 48

約数和(自身を含む): 53706240

約数和(自身を除く): 33286356

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 71, 108, 142, 213, 284, 426, 639, 852, 1278, 1917, 2556, 2663, 3834, 5326, 7668, 7989, 10652, 15978, 23967, 31956, 47934, 71901, 95868, 143802, 189073, 287604, 378146, 567219, 756292, 1134438, 1701657, 2268876, 3403314, 5104971, 6806628, 10209942, 20419884]

約数ペア:

[(1, 20419884), (2, 10209942), (3, 6806628), (4, 5104971), (6, 3403314), (9, 2268876), (12, 1701657), (18, 1134438), (27, 756292), (36, 567219), (54, 378146), (71, 287604), (108, 189073), (142, 143802), (213, 95868), (284, 71901), (426, 47934), (639, 31956), (852, 23967), (1278, 15978), (1917, 10652), (2556, 7989), (2663, 7668), (3834, 5326)]