128217621

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{359153}}^1$

素因数の和:359180

約数の個数: 16

約数和(自身を含む): 206872704

約数和(自身を除く): 78655083

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 359153, 1077459, 2514071, 6105601, 7542213, 18316803, 42739207, 128217621]

約数ペア:

[(1, 128217621), (3, 42739207), (7, 18316803), (17, 7542213), (21, 6105601), (51, 2514071), (119, 1077459), (357, 359153)]