20502992

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{15439}}^1$

素因数の和:15530

約数の個数: 20

約数和(自身を含む): 40205760

約数和(自身を除く): 19702768

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 1328, 15439, 30878, 61756, 123512, 247024, 1281437, 2562874, 5125748, 10251496, 20502992]

約数ペア:

[(1, 20502992), (2, 10251496), (4, 5125748), (8, 2562874), (16, 1281437), (83, 247024), (166, 123512), (332, 61756), (664, 30878), (1328, 15439)]