20876996

素因数分解:

$2^2\times 7^1\times {\mathrm{409}}^1\times {\mathrm{1823}}^1$

素因数の和:2243

約数の個数: 24

約数和(自身を含む): 41879040

約数和(自身を除く): 21002044

約数列:

[1, 2, 4, 7, 14, 28, 409, 818, 1636, 1823, 2863, 3646, 5726, 7292, 11452, 12761, 25522, 51044, 745607, 1491214, 2982428, 5219249, 10438498, 20876996]

約数ペア:

[(1, 20876996), (2, 10438498), (4, 5219249), (7, 2982428), (14, 1491214), (28, 745607), (409, 51044), (818, 25522), (1636, 12761), (1823, 11452), (2863, 7292), (3646, 5726)]