207821107

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1151}}^1$

素因数の和:1243

約数の個数: 32

約数和(自身を含む): 255467520

約数和(自身を除く): 47646413

約数列:

[1, 13, 17, 19, 43, 221, 247, 323, 559, 731, 817, 1151, 4199, 9503, 10621, 13889, 14963, 19567, 21869, 49493, 180557, 254371, 284297, 371773, 643409, 841381, 940367, 4833049, 10937953, 12224771, 15986239, 207821107]

約数ペア:

[(1, 207821107), (13, 15986239), (17, 12224771), (19, 10937953), (43, 4833049), (221, 940367), (247, 841381), (323, 643409), (559, 371773), (731, 284297), (817, 254371), (1151, 180557), (4199, 49493), (9503, 21869), (10621, 19567), (13889, 14963)]