21485776

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1949}}^1$

素因数の和:2023

約数の個数: 40

約数和(自身を含む): 45700200

約数和(自身を除く): 24214424

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 53, 104, 106, 208, 212, 424, 689, 848, 1378, 1949, 2756, 3898, 5512, 7796, 11024, 15592, 25337, 31184, 50674, 101348, 103297, 202696, 206594, 405392, 413188, 826376, 1342861, 1652752, 2685722, 5371444, 10742888, 21485776]

約数ペア:

[(1, 21485776), (2, 10742888), (4, 5371444), (8, 2685722), (13, 1652752), (16, 1342861), (26, 826376), (52, 413188), (53, 405392), (104, 206594), (106, 202696), (208, 103297), (212, 101348), (424, 50674), (689, 31184), (848, 25337), (1378, 15592), (1949, 11024), (2756, 7796), (3898, 5512)]