21036477

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{4793}}^1$

素因数の和:4833

約数の個数: 32

約数和(自身を含む): 36817920

約数和(自身を除く): 15781443

約数列:

[1, 3, 7, 11, 19, 21, 33, 57, 77, 133, 209, 231, 399, 627, 1463, 4389, 4793, 14379, 33551, 52723, 91067, 100653, 158169, 273201, 369061, 637469, 1001737, 1107183, 1912407, 3005211, 7012159, 21036477]

約数ペア:

[(1, 21036477), (3, 7012159), (7, 3005211), (11, 1912407), (19, 1107183), (21, 1001737), (33, 637469), (57, 369061), (77, 273201), (133, 158169), (209, 100653), (231, 91067), (399, 52723), (627, 33551), (1463, 14379), (4389, 4793)]