28728729

素因数分解:

$3^3\times {\mathrm{67}}^1\times {\mathrm{15881}}^1$

素因数の和:15957

約数の個数: 16

約数和(自身を含む): 43199040

約数和(自身を除く): 14470311

約数列:

[1, 3, 9, 27, 67, 201, 603, 1809, 15881, 47643, 142929, 428787, 1064027, 3192081, 9576243, 28728729]

約数ペア:

[(1, 28728729), (3, 9576243), (9, 3192081), (27, 1064027), (67, 428787), (201, 142929), (603, 47643), (1809, 15881)]