257942377

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{1021}}^1$

素因数の和:1249

約数の個数: 32

約数和(自身を含む): 342607104

約数和(自身を除く): 84664727

約数列:

[1, 7, 11, 17, 77, 119, 187, 193, 1021, 1309, 1351, 2123, 3281, 7147, 11231, 14861, 17357, 22967, 36091, 78617, 121499, 190927, 197053, 252637, 1336489, 1379371, 2167583, 3349901, 15173081, 23449307, 36848911, 257942377]

約数ペア:

[(1, 257942377), (7, 36848911), (11, 23449307), (17, 15173081), (77, 3349901), (119, 2167583), (187, 1379371), (193, 1336489), (1021, 252637), (1309, 197053), (1351, 190927), (2123, 121499), (3281, 78617), (7147, 36091), (11231, 22967), (14861, 17357)]