19982416

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{367}}^1$

素因数の和:499

約数の個数: 40

約数和(自身を含む): 40247424

約数和(自身を除く): 20265008

約数列:

[1, 2, 4, 8, 16, 41, 82, 83, 164, 166, 328, 332, 367, 656, 664, 734, 1328, 1468, 2936, 3403, 5872, 6806, 13612, 15047, 27224, 30094, 30461, 54448, 60188, 60922, 120376, 121844, 240752, 243688, 487376, 1248901, 2497802, 4995604, 9991208, 19982416]

約数ペア:

[(1, 19982416), (2, 9991208), (4, 4995604), (8, 2497802), (16, 1248901), (41, 487376), (82, 243688), (83, 240752), (164, 121844), (166, 120376), (328, 60922), (332, 60188), (367, 54448), (656, 30461), (664, 30094), (734, 27224), (1328, 15047), (1468, 13612), (2936, 6806), (3403, 5872)]