28379871

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{5641}}^1$

素因数の和:5703

約数の個数: 24

約数和(自身を含む): 45181136

約数和(自身を除く): 16801265

約数列:

[1, 3, 9, 13, 39, 43, 117, 129, 387, 559, 1677, 5031, 5641, 16923, 50769, 73333, 219999, 242563, 659997, 727689, 2183067, 3153319, 9459957, 28379871]

約数ペア:

[(1, 28379871), (3, 9459957), (9, 3153319), (13, 2183067), (39, 727689), (43, 659997), (117, 242563), (129, 219999), (387, 73333), (559, 50769), (1677, 16923), (5031, 5641)]