20879096

素因数分解:

$2^3\times 7^4\times {\mathrm{1087}}^1$

素因数の和:1121

約数の個数: 40

約数和(自身を含む): 45712320

約数和(自身を除く): 24833224

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 343, 392, 686, 1087, 1372, 2174, 2401, 2744, 4348, 4802, 7609, 8696, 9604, 15218, 19208, 30436, 53263, 60872, 106526, 213052, 372841, 426104, 745682, 1491364, 2609887, 2982728, 5219774, 10439548, 20879096]

約数ペア:

[(1, 20879096), (2, 10439548), (4, 5219774), (7, 2982728), (8, 2609887), (14, 1491364), (28, 745682), (49, 426104), (56, 372841), (98, 213052), (196, 106526), (343, 60872), (392, 53263), (686, 30436), (1087, 19208), (1372, 15218), (2174, 9604), (2401, 8696), (2744, 7609), (4348, 4802)]