172820739

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{13469}}^1$

素因数の和:13539

約数の個数: 32

約数和(自身を含む): 289658880

約数和(自身を除く): 116838141

約数列:

[1, 3, 7, 13, 21, 39, 47, 91, 141, 273, 329, 611, 987, 1833, 4277, 12831, 13469, 40407, 94283, 175097, 282849, 525291, 633043, 1225679, 1899129, 3677037, 4431301, 8229559, 13293903, 24688677, 57606913, 172820739]

約数ペア:

[(1, 172820739), (3, 57606913), (7, 24688677), (13, 13293903), (21, 8229559), (39, 4431301), (47, 3677037), (91, 1899129), (141, 1225679), (273, 633043), (329, 525291), (611, 282849), (987, 175097), (1833, 94283), (4277, 40407), (12831, 13469)]