1990513

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1$

素因数の和:456

約数の個数: 16

約数和(自身を含む): 2471040

約数和(自身を除く): 480527

約数列:

[1, 7, 17, 43, 119, 301, 389, 731, 2723, 5117, 6613, 16727, 46291, 117089, 284359, 1990513]

約数ペア:

[(1, 1990513), (7, 284359), (17, 117089), (43, 46291), (119, 16727), (301, 6613), (389, 5117), (731, 2723)]