20904552

素因数分解:

$2^3\times 3^2\times {\mathrm{199}}^1\times {\mathrm{1459}}^1$

素因数の和:1670

約数の個数: 48

約数和(自身を含む): 56940000

約数和(自身を除く): 36035448

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 199, 398, 597, 796, 1194, 1459, 1592, 1791, 2388, 2918, 3582, 4377, 4776, 5836, 7164, 8754, 11672, 13131, 14328, 17508, 26262, 35016, 52524, 105048, 290341, 580682, 871023, 1161364, 1742046, 2322728, 2613069, 3484092, 5226138, 6968184, 10452276, 20904552]

約数ペア:

[(1, 20904552), (2, 10452276), (3, 6968184), (4, 5226138), (6, 3484092), (8, 2613069), (9, 2322728), (12, 1742046), (18, 1161364), (24, 871023), (36, 580682), (72, 290341), (199, 105048), (398, 52524), (597, 35016), (796, 26262), (1194, 17508), (1459, 14328), (1592, 13131), (1791, 11672), (2388, 8754), (2918, 7164), (3582, 5836), (4377, 4776)]