21040373756

素因数分解:

$2^2\times {\mathrm{277}}^1\times {\mathrm{18989507}}^1$

素因数の和:18989788

約数の個数: 12

約数和(自身を含む): 36953582568

約数和(自身を除く): 15913208812

約数列:

[1, 2, 4, 277, 554, 1108, 18989507, 37979014, 75958028, 5260093439, 10520186878, 21040373756]

約数ペア:

[(1, 21040373756), (2, 10520186878), (4, 5260093439), (277, 75958028), (554, 37979014), (1108, 18989507)]