21115691096

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{64377107}}^1$

素因数の和:64377154

約数の個数: 16

約数和(自身を含む): 40557578040

約数和(自身を除く): 19441886944

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 64377107, 128754214, 257508428, 515016856, 2639461387, 5278922774, 10557845548, 21115691096]

約数ペア:

[(1, 21115691096), (2, 10557845548), (4, 5278922774), (8, 2639461387), (41, 515016856), (82, 257508428), (164, 128754214), (328, 64377107)]