217278844

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{1324871}}^1$

素因数の和:1324916

約数の個数: 12

約数和(自身を含む): 389512368

約数和(自身を除く): 172233524

約数列:

[1, 2, 4, 41, 82, 164, 1324871, 2649742, 5299484, 54319711, 108639422, 217278844]

約数ペア:

[(1, 217278844), (2, 108639422), (4, 54319711), (41, 5299484), (82, 2649742), (164, 1324871)]