20949118

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{4759}}^1$

素因数の和:4863

約数の個数: 16

約数和(自身を含む): 32901120

約数和(自身を除く): 11952002

約数列:

[1, 2, 31, 62, 71, 142, 2201, 4402, 4759, 9518, 147529, 295058, 337889, 675778, 10474559, 20949118]

約数ペア:

[(1, 20949118), (2, 10474559), (31, 675778), (62, 337889), (71, 295058), (142, 147529), (2201, 9518), (4402, 4759)]