21040584

素因数分解:

$2^3\times 3^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{811}}^1$

素因数の和:890

約数の個数: 64

約数和(自身を含む): 56125440

約数和(自身を除く): 35084856

約数列:

[1, 2, 3, 4, 6, 8, 12, 23, 24, 46, 47, 69, 92, 94, 138, 141, 184, 188, 276, 282, 376, 552, 564, 811, 1081, 1128, 1622, 2162, 2433, 3243, 3244, 4324, 4866, 6486, 6488, 8648, 9732, 12972, 18653, 19464, 25944, 37306, 38117, 55959, 74612, 76234, 111918, 114351, 149224, 152468, 223836, 228702, 304936, 447672, 457404, 876691, 914808, 1753382, 2630073, 3506764, 5260146, 7013528, 10520292, 21040584]

約数ペア:

[(1, 21040584), (2, 10520292), (3, 7013528), (4, 5260146), (6, 3506764), (8, 2630073), (12, 1753382), (23, 914808), (24, 876691), (46, 457404), (47, 447672), (69, 304936), (92, 228702), (94, 223836), (138, 152468), (141, 149224), (184, 114351), (188, 111918), (276, 76234), (282, 74612), (376, 55959), (552, 38117), (564, 37306), (811, 25944), (1081, 19464), (1128, 18653), (1622, 12972), (2162, 9732), (2433, 8648), (3243, 6488), (3244, 6486), (4324, 4866)]