20974583

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{4099}}^1$

素因数の和:4166

約数の個数: 16

約数和(自身を含む): 25977600

約数和(自身を除く): 5003017

約数列:

[1, 7, 17, 43, 119, 301, 731, 4099, 5117, 28693, 69683, 176257, 487781, 1233799, 2996369, 20974583]

約数ペア:

[(1, 20974583), (7, 2996369), (17, 1233799), (43, 487781), (119, 176257), (301, 69683), (731, 28693), (4099, 5117)]