71801991

素因数分解:

$3^3\times {\mathrm{1103}}^1\times {\mathrm{2411}}^1$

素因数の和:3523

約数の個数: 16

約数和(自身を含む): 106513920

約数和(自身を除く): 34711929

約数列:

[1, 3, 9, 27, 1103, 2411, 3309, 7233, 9927, 21699, 29781, 65097, 2659333, 7977999, 23933997, 71801991]

約数ペア:

[(1, 71801991), (3, 23933997), (9, 7977999), (27, 2659333), (1103, 65097), (2411, 29781), (3309, 21699), (7233, 9927)]