20128149

素因数分解:

$3^3\times {\mathrm{151}}^1\times {\mathrm{4937}}^1$

素因数の和:5097

約数の個数: 16

約数和(自身を含む): 30023040

約数和(自身を除く): 9894891

約数列:

[1, 3, 9, 27, 151, 453, 1359, 4077, 4937, 14811, 44433, 133299, 745487, 2236461, 6709383, 20128149]

約数ペア:

[(1, 20128149), (3, 6709383), (9, 2236461), (27, 745487), (151, 133299), (453, 44433), (1359, 14811), (4077, 4937)]