81512391

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{331}}^1$

素因数の和:483

約数の個数: 32

約数和(自身を含む): 117798912

約数和(自身を除く): 36286521

約数列:

[1, 3, 23, 43, 69, 83, 129, 249, 331, 989, 993, 1909, 2967, 3569, 5727, 7613, 10707, 14233, 22839, 27473, 42699, 82087, 82419, 246261, 327359, 631879, 982077, 1181339, 1895637, 3544017, 27170797, 81512391]

約数ペア:

[(1, 81512391), (3, 27170797), (23, 3544017), (43, 1895637), (69, 1181339), (83, 982077), (129, 631879), (249, 327359), (331, 246261), (989, 82419), (993, 82087), (1909, 42699), (2967, 27473), (3569, 22839), (5727, 14233), (7613, 10707)]