20707128

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{22123}}^1$

素因数の和:22148

約数の個数: 48

約数和(自身を含む): 60398520

約数和(自身を除く): 39691392

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 22123, 44246, 66369, 88492, 132738, 176984, 199107, 265476, 287599, 398214, 530952, 575198, 796428, 862797, 1150396, 1592856, 1725594, 2300792, 2588391, 3451188, 5176782, 6902376, 10353564, 20707128]

約数ペア:

[(1, 20707128), (2, 10353564), (3, 6902376), (4, 5176782), (6, 3451188), (8, 2588391), (9, 2300792), (12, 1725594), (13, 1592856), (18, 1150396), (24, 862797), (26, 796428), (36, 575198), (39, 530952), (52, 398214), (72, 287599), (78, 265476), (104, 199107), (117, 176984), (156, 132738), (234, 88492), (312, 66369), (468, 44246), (936, 22123)]