21267323

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{211}}^1$

素因数の和:264

約数の個数: 36

約数和(自身を含む): 28929096

約数和(自身を除く): 7661773

約数列:

[1, 7, 11, 17, 49, 77, 119, 121, 187, 211, 539, 833, 847, 1309, 1477, 2057, 2321, 3587, 5929, 9163, 10339, 14399, 16247, 25109, 25531, 39457, 100793, 113729, 175763, 178717, 276199, 434027, 1251019, 1933393, 3038189, 21267323]

約数ペア:

[(1, 21267323), (7, 3038189), (11, 1933393), (17, 1251019), (49, 434027), (77, 276199), (119, 178717), (121, 175763), (187, 113729), (211, 100793), (539, 39457), (833, 25531), (847, 25109), (1309, 16247), (1477, 14399), (2057, 10339), (2321, 9163), (3587, 5929)]