21016336

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2777}}^1$

素因数の和:2839

約数の個数: 40

約数和(自身を含む): 45470304

約数和(自身を除く): 24453968

約数列:

[1, 2, 4, 8, 11, 16, 22, 43, 44, 86, 88, 172, 176, 344, 473, 688, 946, 1892, 2777, 3784, 5554, 7568, 11108, 22216, 30547, 44432, 61094, 119411, 122188, 238822, 244376, 477644, 488752, 955288, 1313521, 1910576, 2627042, 5254084, 10508168, 21016336]

約数ペア:

[(1, 21016336), (2, 10508168), (4, 5254084), (8, 2627042), (11, 1910576), (16, 1313521), (22, 955288), (43, 488752), (44, 477644), (86, 244376), (88, 238822), (172, 122188), (176, 119411), (344, 61094), (473, 44432), (688, 30547), (946, 22216), (1892, 11108), (2777, 7568), (3784, 5554)]