21440570

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{4349}}^1$

素因数の和:4402

約数の個数: 32

約数和(自身を含む): 42282000

約数和(自身を除く): 20841430

約数列:

[1, 2, 5, 10, 17, 29, 34, 58, 85, 145, 170, 290, 493, 986, 2465, 4349, 4930, 8698, 21745, 43490, 73933, 126121, 147866, 252242, 369665, 630605, 739330, 1261210, 2144057, 4288114, 10720285, 21440570]

約数ペア:

[(1, 21440570), (2, 10720285), (5, 4288114), (10, 2144057), (17, 1261210), (29, 739330), (34, 630605), (58, 369665), (85, 252242), (145, 147866), (170, 126121), (290, 73933), (493, 43490), (986, 21745), (2465, 8698), (4349, 4930)]