20504984

素因数分解:

$2^3\times {\mathrm{83}}^1\times {\mathrm{30881}}^1$

素因数の和:30970

約数の個数: 16

約数和(自身を含む): 38911320

約数和(自身を除く): 18406336

約数列:

[1, 2, 4, 8, 83, 166, 332, 664, 30881, 61762, 123524, 247048, 2563123, 5126246, 10252492, 20504984]

約数ペア:

[(1, 20504984), (2, 10252492), (4, 5126246), (8, 2563123), (83, 247048), (166, 123524), (332, 61762), (664, 30881)]