20409914

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{277}}^2$

素因数の和:582

約数の個数: 24

約数和(自身を含む): 36963360

約数和(自身を除く): 16553446

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 277, 554, 1939, 3878, 5263, 10526, 36841, 73682, 76729, 153458, 537103, 1074206, 1457851, 2915702, 10204957, 20409914]

約数ペア:

[(1, 20409914), (2, 10204957), (7, 2915702), (14, 1457851), (19, 1074206), (38, 537103), (133, 153458), (266, 76729), (277, 73682), (554, 36841), (1939, 10526), (3878, 5263)]