156721635891

素因数分解:

$3^4\times {\mathrm{199}}^1\times {\mathrm{9722789}}^1$

素因数の和:9723000

約数の個数: 20

約数和(自身を含む): 235291518000

約数和(自身を除く): 78569882109

約数列:

[1, 3, 9, 27, 81, 199, 597, 1791, 5373, 16119, 9722789, 29168367, 87505101, 262515303, 787545909, 1934835011, 5804505033, 17413515099, 52240545297, 156721635891]

約数ペア:

[(1, 156721635891), (3, 52240545297), (9, 17413515099), (27, 5804505033), (81, 1934835011), (199, 787545909), (597, 262515303), (1791, 87505101), (5373, 29168367), (16119, 9722789)]