20452649

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{571}}^1$

素因数の和:645

約数の個数: 24

約数和(自身を含む): 25822368

約数和(自身を除く): 5369719

約数列:

[1, 7, 17, 43, 49, 119, 301, 571, 731, 833, 2107, 3997, 5117, 9707, 24553, 27979, 35819, 67949, 171871, 417401, 475643, 1203097, 2921807, 20452649]

約数ペア:

[(1, 20452649), (7, 2921807), (17, 1203097), (43, 475643), (49, 417401), (119, 171871), (301, 67949), (571, 35819), (731, 27979), (833, 24553), (2107, 9707), (3997, 5117)]