1920267

素因数分解:

$3^4\times {\mathrm{151}}^1\times {\mathrm{157}}^1$

素因数の和:320

約数の個数: 20

約数和(自身を含む): 2905936

約数和(自身を除く): 985669

約数列:

[1, 3, 9, 27, 81, 151, 157, 453, 471, 1359, 1413, 4077, 4239, 12231, 12717, 23707, 71121, 213363, 640089, 1920267]

約数ペア:

[(1, 1920267), (3, 640089), (9, 213363), (27, 71121), (81, 23707), (151, 12717), (157, 12231), (453, 4239), (471, 4077), (1359, 1413)]