21491584

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{8837}}^1$

素因数の和:8870

約数の個数: 32

約数和(自身を含む): 45073800

約数和(自身を除く): 23582216

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 304, 608, 1216, 2432, 8837, 17674, 35348, 70696, 141392, 167903, 282784, 335806, 565568, 671612, 1131136, 1343224, 2686448, 5372896, 10745792, 21491584]

約数ペア:

[(1, 21491584), (2, 10745792), (4, 5372896), (8, 2686448), (16, 1343224), (19, 1131136), (32, 671612), (38, 565568), (64, 335806), (76, 282784), (128, 167903), (152, 141392), (304, 70696), (608, 35348), (1216, 17674), (2432, 8837)]