78688221

素因数分解:

$3^1\times {\mathrm{23}}^2\times {\mathrm{179}}^1\times {\mathrm{277}}^1$

素因数の和:505

約数の個数: 24

約数和(自身を含む): 110688480

約数和(自身を除く): 32000259

約数列:

[1, 3, 23, 69, 179, 277, 529, 537, 831, 1587, 4117, 6371, 12351, 19113, 49583, 94691, 146533, 148749, 284073, 439599, 1140409, 3421227, 26229407, 78688221]

約数ペア:

[(1, 78688221), (3, 26229407), (23, 3421227), (69, 1140409), (179, 439599), (277, 284073), (529, 148749), (537, 146533), (831, 94691), (1587, 49583), (4117, 19113), (6371, 12351)]