18939376

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{28871}}^1$

素因数の和:28920

約数の個数: 20

約数和(自身を含む): 37591344

約数和(自身を除く): 18651968

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 28871, 57742, 115484, 230968, 461936, 1183711, 2367422, 4734844, 9469688, 18939376]

約数ペア:

[(1, 18939376), (2, 9469688), (4, 4734844), (8, 2367422), (16, 1183711), (41, 461936), (82, 230968), (164, 115484), (328, 57742), (656, 28871)]