157087121541

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{20721161}}^1$

素因数の和:20721209

約数の個数: 24

約数和(自身を含む): 252632407104

約数和(自身を除く): 95545285563

約数列:

[1, 3, 7, 19, 21, 57, 133, 361, 399, 1083, 2527, 7581, 20721161, 62163483, 145048127, 393702059, 435144381, 1181106177, 2755914413, 7480339121, 8267743239, 22441017363, 52362373847, 157087121541]

約数ペア:

[(1, 157087121541), (3, 52362373847), (7, 22441017363), (19, 8267743239), (21, 7480339121), (57, 2755914413), (133, 1181106177), (361, 435144381), (399, 393702059), (1083, 145048127), (2527, 62163483), (7581, 20721161)]