31165755

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1\times {\mathrm{229}}^1$

素因数の和:491

約数の個数: 32

約数和(自身を含む): 51490560

約数和(自身を除く): 20324805

約数列:

[1, 3, 5, 15, 43, 129, 211, 215, 229, 633, 645, 687, 1055, 1145, 3165, 3435, 9073, 9847, 27219, 29541, 45365, 48319, 49235, 136095, 144957, 147705, 241595, 724785, 2077717, 6233151, 10388585, 31165755]

約数ペア:

[(1, 31165755), (3, 10388585), (5, 6233151), (15, 2077717), (43, 724785), (129, 241595), (211, 147705), (215, 144957), (229, 136095), (633, 49235), (645, 48319), (687, 45365), (1055, 29541), (1145, 27219), (3165, 9847), (3435, 9073)]