21723004

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{5393}}^1$

素因数の和:5469

約数の個数: 24

約数和(自身を含む): 40778640

約数和(自身を除く): 19055636

約数列:

[1, 2, 4, 19, 38, 53, 76, 106, 212, 1007, 2014, 4028, 5393, 10786, 21572, 102467, 204934, 285829, 409868, 571658, 1143316, 5430751, 10861502, 21723004]

約数ペア:

[(1, 21723004), (2, 10861502), (4, 5430751), (19, 1143316), (38, 571658), (53, 409868), (76, 285829), (106, 204934), (212, 102467), (1007, 21572), (2014, 10786), (4028, 5393)]