21030849

素因数分解:

$3^2\times 7^2\times {\mathrm{103}}^1\times {\mathrm{463}}^1$

素因数の和:586

約数の個数: 36

約数和(自身を含む): 35757696

約数和(自身を除く): 14726847

約数列:

[1, 3, 7, 9, 21, 49, 63, 103, 147, 309, 441, 463, 721, 927, 1389, 2163, 3241, 4167, 5047, 6489, 9723, 15141, 22687, 29169, 45423, 47689, 68061, 143067, 204183, 333823, 429201, 1001469, 2336761, 3004407, 7010283, 21030849]

約数ペア:

[(1, 21030849), (3, 7010283), (7, 3004407), (9, 2336761), (21, 1001469), (49, 429201), (63, 333823), (103, 204183), (147, 143067), (309, 68061), (441, 47689), (463, 45423), (721, 29169), (927, 22687), (1389, 15141), (2163, 9723), (3241, 6489), (4167, 5047)]