81363231

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{42443}}^1$

素因数の和:42523

約数の個数: 16

約数和(自身を含む): 122238720

約数和(自身を除く): 40875489

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 42443, 127329, 381987, 1145961, 3013453, 9040359, 27121077, 81363231]

約数ペア:

[(1, 81363231), (3, 27121077), (9, 9040359), (27, 3013453), (71, 1145961), (213, 381987), (639, 127329), (1917, 42443)]