128668617

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{16879}}^1$

素因数の和:16914

約数の個数: 36

約数和(自身を含む): 233484160

約数和(自身を除く): 104815543

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 121, 231, 363, 693, 847, 1089, 2541, 7623, 16879, 50637, 118153, 151911, 185669, 354459, 557007, 1063377, 1299683, 1671021, 2042359, 3899049, 6127077, 11697147, 14296513, 18381231, 42889539, 128668617]

約数ペア:

[(1, 128668617), (3, 42889539), (7, 18381231), (9, 14296513), (11, 11697147), (21, 6127077), (33, 3899049), (63, 2042359), (77, 1671021), (99, 1299683), (121, 1063377), (231, 557007), (363, 354459), (693, 185669), (847, 151911), (1089, 118153), (2541, 50637), (7623, 16879)]