1215708021

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{1364431}}^1$

素因数の和:1364454

約数の個数: 20

約数和(自身を含む): 1981155264

約数和(自身を除く): 765447243

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 1364431, 4093293, 12279879, 15008741, 36839637, 45026223, 110518911, 135078669, 405236007, 1215708021]

約数ペア:

[(1, 1215708021), (3, 405236007), (9, 135078669), (11, 110518911), (27, 45026223), (33, 36839637), (81, 15008741), (99, 12279879), (297, 4093293), (891, 1364431)]