20801207

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{2383}}^1$

素因数の和:2462

約数の個数: 16

約数和(自身を含む): 25175040

約数和(自身を除く): 4373833

約数列:

[1, 7, 29, 43, 203, 301, 1247, 2383, 8729, 16681, 69107, 102469, 483749, 717283, 2971601, 20801207]

約数ペア:

[(1, 20801207), (7, 2971601), (29, 717283), (43, 483749), (203, 102469), (301, 69107), (1247, 16681), (2383, 8729)]