21055778868

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{40805773}}^1$

素因数の和:40805823

約数の個数: 24

約数和(自身を含む): 50272713568

約数和(自身を除く): 29216934700

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 40805773, 81611546, 122417319, 163223092, 244834638, 489669276, 1754648239, 3509296478, 5263944717, 7018592956, 10527889434, 21055778868]

約数ペア:

[(1, 21055778868), (2, 10527889434), (3, 7018592956), (4, 5263944717), (6, 3509296478), (12, 1754648239), (43, 489669276), (86, 244834638), (129, 163223092), (172, 122417319), (258, 81611546), (516, 40805773)]