2628207

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{457}}^1$

素因数の和:540

約数の個数: 20

約数和(自身を含む): 3990096

約数和(自身を除く): 1361889

約数列:

[1, 3, 9, 27, 71, 81, 213, 457, 639, 1371, 1917, 4113, 5751, 12339, 32447, 37017, 97341, 292023, 876069, 2628207]

約数ペア:

[(1, 2628207), (3, 876069), (9, 292023), (27, 97341), (71, 37017), (81, 32447), (213, 12339), (457, 5751), (639, 4113), (1371, 1917)]