28128627

素因数分解:

$3^4\times {\mathrm{239}}^1\times {\mathrm{1453}}^1$

素因数の和:1704

約数の個数: 20

約数和(自身を含む): 42224160

約数和(自身を除く): 14095533

約数列:

[1, 3, 9, 27, 81, 239, 717, 1453, 2151, 4359, 6453, 13077, 19359, 39231, 117693, 347267, 1041801, 3125403, 9376209, 28128627]

約数ペア:

[(1, 28128627), (3, 9376209), (9, 3125403), (27, 1041801), (81, 347267), (239, 117693), (717, 39231), (1453, 19359), (2151, 13077), (4359, 6453)]