205779

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{239}}^1$

素因数の和:290

約数の個数: 16

約数和(自身を含む): 322560

約数和(自身を除く): 116781

約数列:

[1, 3, 7, 21, 41, 123, 239, 287, 717, 861, 1673, 5019, 9799, 29397, 68593, 205779]

約数ペア:

[(1, 205779), (3, 68593), (7, 29397), (21, 9799), (41, 5019), (123, 1673), (239, 861), (287, 717)]