18019017

素因数分解:

$3^4\times {\mathrm{149}}^1\times {\mathrm{1493}}^1$

素因数の和:1654

約数の個数: 20

約数和(自身を含む): 27116100

約数和(自身を除く): 9097083

約数列:

[1, 3, 9, 27, 81, 149, 447, 1341, 1493, 4023, 4479, 12069, 13437, 40311, 120933, 222457, 667371, 2002113, 6006339, 18019017]

約数ペア:

[(1, 18019017), (3, 6006339), (9, 2002113), (27, 667371), (81, 222457), (149, 120933), (447, 40311), (1341, 13437), (1493, 12069), (4023, 4479)]