20563984

素因数分解:

$2^4\times 7^1\times {\mathrm{89}}^1\times {\mathrm{2063}}^1$

素因数の和:2167

約数の個数: 40

約数和(自身を含む): 46068480

約数和(自身を除く): 25504496

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 89, 112, 178, 356, 623, 712, 1246, 1424, 2063, 2492, 4126, 4984, 8252, 9968, 14441, 16504, 28882, 33008, 57764, 115528, 183607, 231056, 367214, 734428, 1285249, 1468856, 2570498, 2937712, 5140996, 10281992, 20563984]

約数ペア:

[(1, 20563984), (2, 10281992), (4, 5140996), (7, 2937712), (8, 2570498), (14, 1468856), (16, 1285249), (28, 734428), (56, 367214), (89, 231056), (112, 183607), (178, 115528), (356, 57764), (623, 33008), (712, 28882), (1246, 16504), (1424, 14441), (2063, 9968), (2492, 8252), (4126, 4984)]