20874133

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{317}}^1\times {\mathrm{409}}^1$

素因数の和:756

約数の個数: 16

約数和(自身を含む): 25032960

約数和(自身を除く): 4158827

約数列:

[1, 7, 23, 161, 317, 409, 2219, 2863, 7291, 9407, 51037, 65849, 129653, 907571, 2982019, 20874133]

約数ペア:

[(1, 20874133), (7, 2982019), (23, 907571), (161, 129653), (317, 65849), (409, 51037), (2219, 9407), (2863, 7291)]