21923660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{439}}^1$

素因数の和:686

約数の個数: 48

約数和(自身を含む): 50561280

約数和(自身を除く): 28637620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 227, 439, 454, 878, 908, 1135, 1756, 2195, 2270, 2497, 4390, 4540, 4829, 4994, 8780, 9658, 9988, 12485, 19316, 24145, 24970, 48290, 49940, 96580, 99653, 199306, 398612, 498265, 996530, 1096183, 1993060, 2192366, 4384732, 5480915, 10961830, 21923660]

約数ペア:

[(1, 21923660), (2, 10961830), (4, 5480915), (5, 4384732), (10, 2192366), (11, 1993060), (20, 1096183), (22, 996530), (44, 498265), (55, 398612), (110, 199306), (220, 99653), (227, 96580), (439, 49940), (454, 48290), (878, 24970), (908, 24145), (1135, 19316), (1756, 12485), (2195, 9988), (2270, 9658), (2497, 8780), (4390, 4994), (4540, 4829)]