2782759

素因数分解:

$7^4\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:108

約数の個数: 20

約数和(自身を含む): 3473240

約数和(自身を除く): 690481

約数列:

[1, 7, 19, 49, 61, 133, 343, 427, 931, 1159, 2401, 2989, 6517, 8113, 20923, 45619, 56791, 146461, 397537, 2782759]

約数ペア:

[(1, 2782759), (7, 397537), (19, 146461), (49, 56791), (61, 45619), (133, 20923), (343, 8113), (427, 6517), (931, 2989), (1159, 2401)]