18926217

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{10159}}^1$

素因数の和:10194

約数の個数: 20

約数和(自身を含む): 29504640

約数和(自身を除く): 10578423

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 10159, 30477, 91431, 233657, 274293, 700971, 822879, 2102913, 6308739, 18926217]

約数ペア:

[(1, 18926217), (3, 6308739), (9, 2102913), (23, 822879), (27, 700971), (69, 274293), (81, 233657), (207, 91431), (621, 30477), (1863, 10159)]