257103729

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{479}}^1\times {\mathrm{2593}}^1$

素因数の和:3101

約数の個数: 24

約数和(自身を含む): 388477440

約数和(自身を除く): 131373711

約数列:

[1, 3, 9, 23, 69, 207, 479, 1437, 2593, 4311, 7779, 11017, 23337, 33051, 59639, 99153, 178917, 536751, 1242047, 3726141, 11178423, 28567081, 85701243, 257103729]

約数ペア:

[(1, 257103729), (3, 85701243), (9, 28567081), (23, 11178423), (69, 3726141), (207, 1242047), (479, 536751), (1437, 178917), (2593, 99153), (4311, 59639), (7779, 33051), (11017, 23337)]