2651211

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{461}}^1$

素因数の和:544

約数の個数: 20

約数和(自身を含む): 4024944

約数和(自身を除く): 1373733

約数列:

[1, 3, 9, 27, 71, 81, 213, 461, 639, 1383, 1917, 4149, 5751, 12447, 32731, 37341, 98193, 294579, 883737, 2651211]

約数ペア:

[(1, 2651211), (3, 883737), (9, 294579), (27, 98193), (71, 37341), (81, 32731), (213, 12447), (461, 5751), (639, 4149), (1383, 1917)]