81193791

素因数分解:

$3^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{19429}}^1$

素因数の和:19638

約数の個数: 16

約数和(自身を含む): 124352000

約数和(自身を除く): 43158209

約数列:

[1, 3, 7, 21, 199, 597, 1393, 4179, 19429, 58287, 136003, 408009, 3866371, 11599113, 27064597, 81193791]

約数ペア:

[(1, 81193791), (3, 27064597), (7, 11599113), (21, 3866371), (199, 408009), (597, 136003), (1393, 58287), (4179, 19429)]