128045589

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{547}}^1$

素因数の和:785

約数の個数: 32

約数和(自身を含む): 199489536

約数和(自身を除く): 71443947

約数列:

[1, 3, 7, 21, 71, 157, 213, 471, 497, 547, 1099, 1491, 1641, 3297, 3829, 11147, 11487, 33441, 38837, 78029, 85879, 116511, 234087, 257637, 271859, 601153, 815577, 1803459, 6097409, 18292227, 42681863, 128045589]

約数ペア:

[(1, 128045589), (3, 42681863), (7, 18292227), (21, 6097409), (71, 1803459), (157, 815577), (213, 601153), (471, 271859), (497, 257637), (547, 234087), (1099, 116511), (1491, 85879), (1641, 78029), (3297, 38837), (3829, 33441), (11147, 11487)]