31689138

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{406271}}^1$

素因数の和:406289

約数の個数: 16

約数和(自身を含む): 68253696

約数和(自身を除く): 36564558

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 406271, 812542, 1218813, 2437626, 5281523, 10563046, 15844569, 31689138]

約数ペア:

[(1, 31689138), (2, 15844569), (3, 10563046), (6, 5281523), (13, 2437626), (26, 1218813), (39, 812542), (78, 406271)]