21081484

素因数分解:

$2^2\times {\mathrm{443}}^1\times {\mathrm{11897}}^1$

素因数の和:12344

約数の個数: 12

約数和(自身を含む): 36978984

約数和(自身を除く): 15897500

約数列:

[1, 2, 4, 443, 886, 1772, 11897, 23794, 47588, 5270371, 10540742, 21081484]

約数ペア:

[(1, 21081484), (2, 10540742), (4, 5270371), (443, 47588), (886, 23794), (1772, 11897)]