2159379

素因数分解:

$3^4\times {\mathrm{53}}^1\times {\mathrm{503}}^1$

素因数の和:568

約数の個数: 20

約数和(自身を含む): 3293136

約数和(自身を除く): 1133757

約数列:

[1, 3, 9, 27, 53, 81, 159, 477, 503, 1431, 1509, 4293, 4527, 13581, 26659, 40743, 79977, 239931, 719793, 2159379]

約数ペア:

[(1, 2159379), (3, 719793), (9, 239931), (27, 79977), (53, 40743), (81, 26659), (159, 13581), (477, 4527), (503, 4293), (1431, 1509)]