20399806

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1447}}^1$

素因数の和:1528

約数の個数: 32

約数和(自身を含む): 37532160

約数和(自身を除く): 17132354

約数列:

[1, 2, 7, 14, 19, 38, 53, 106, 133, 266, 371, 742, 1007, 1447, 2014, 2894, 7049, 10129, 14098, 20258, 27493, 54986, 76691, 153382, 192451, 384902, 536837, 1073674, 1457129, 2914258, 10199903, 20399806]

約数ペア:

[(1, 20399806), (2, 10199903), (7, 2914258), (14, 1457129), (19, 1073674), (38, 536837), (53, 384902), (106, 192451), (133, 153382), (266, 76691), (371, 54986), (742, 27493), (1007, 20258), (1447, 14098), (2014, 10129), (2894, 7049)]