21804433

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{2903}}^1$

素因数の和:2976

約数の個数: 16

約数和(自身を含む): 26484480

約数和(自身を除く): 4680047

約数列:

[1, 7, 29, 37, 203, 259, 1073, 2903, 7511, 20321, 84187, 107411, 589309, 751877, 3114919, 21804433]

約数ペア:

[(1, 21804433), (7, 3114919), (29, 751877), (37, 589309), (203, 107411), (259, 84187), (1073, 20321), (2903, 7511)]