279943321

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{300691}}^1$

素因数の和:300724

約数の個数: 12

約数和(自身を含む): 342788880

約数和(自身を除く): 62845559

約数列:

[1, 7, 19, 49, 133, 931, 300691, 2104837, 5713129, 14733859, 39991903, 279943321]

約数ペア:

[(1, 279943321), (7, 39991903), (19, 14733859), (49, 5713129), (133, 2104837), (931, 300691)]