21072027

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:275

約数の個数: 32

約数和(自身を含む): 31104000

約数和(自身を除く): 10031973

約数列:

[1, 3, 17, 47, 51, 59, 141, 149, 177, 447, 799, 1003, 2397, 2533, 2773, 3009, 7003, 7599, 8319, 8791, 21009, 26373, 47141, 119051, 141423, 149447, 357153, 413177, 448341, 1239531, 7024009, 21072027]

約数ペア:

[(1, 21072027), (3, 7024009), (17, 1239531), (47, 448341), (51, 413177), (59, 357153), (141, 149447), (149, 141423), (177, 119051), (447, 47141), (799, 26373), (1003, 21009), (2397, 8791), (2533, 8319), (2773, 7599), (3009, 7003)]