1800063

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{313}}^1$

素因数の和:396

約数の個数: 20

約数和(自身を含む): 2735568

約数和(自身を除く): 935505

約数列:

[1, 3, 9, 27, 71, 81, 213, 313, 639, 939, 1917, 2817, 5751, 8451, 22223, 25353, 66669, 200007, 600021, 1800063]

約数ペア:

[(1, 1800063), (3, 600021), (9, 200007), (27, 66669), (71, 25353), (81, 22223), (213, 8451), (313, 5751), (639, 2817), (939, 1917)]