20803986

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1171}}^1$

素因数の和:1236

約数の個数: 64

約数和(自身を含む): 54005760

約数和(自身を除く): 33201774

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 47, 54, 63, 94, 126, 141, 189, 282, 329, 378, 423, 658, 846, 987, 1171, 1269, 1974, 2342, 2538, 2961, 3513, 5922, 7026, 8197, 8883, 10539, 16394, 17766, 21078, 24591, 31617, 49182, 55037, 63234, 73773, 110074, 147546, 165111, 221319, 330222, 385259, 442638, 495333, 770518, 990666, 1155777, 1485999, 2311554, 2971998, 3467331, 6934662, 10401993, 20803986]

約数ペア:

[(1, 20803986), (2, 10401993), (3, 6934662), (6, 3467331), (7, 2971998), (9, 2311554), (14, 1485999), (18, 1155777), (21, 990666), (27, 770518), (42, 495333), (47, 442638), (54, 385259), (63, 330222), (94, 221319), (126, 165111), (141, 147546), (189, 110074), (282, 73773), (329, 63234), (378, 55037), (423, 49182), (658, 31617), (846, 24591), (987, 21078), (1171, 17766), (1269, 16394), (1974, 10539), (2342, 8883), (2538, 8197), (2961, 7026), (3513, 5922)]