20761860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{49433}}^1$

素因数の和:49452

約数の個数: 48

約数和(自身を含む): 66439296

約数和(自身を除く): 45677436

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 49433, 98866, 148299, 197732, 247165, 296598, 346031, 494330, 593196, 692062, 741495, 988660, 1038093, 1384124, 1482990, 1730155, 2076186, 2965980, 3460310, 4152372, 5190465, 6920620, 10380930, 20761860]

約数ペア:

[(1, 20761860), (2, 10380930), (3, 6920620), (4, 5190465), (5, 4152372), (6, 3460310), (7, 2965980), (10, 2076186), (12, 1730155), (14, 1482990), (15, 1384124), (20, 1038093), (21, 988660), (28, 741495), (30, 692062), (35, 593196), (42, 494330), (60, 346031), (70, 296598), (84, 247165), (105, 197732), (140, 148299), (210, 98866), (420, 49433)]