18971375073

素因数分解:

$3^1\times 7^1\times {\mathrm{65831}}^1\times {\mathrm{13723}}^1$

素因数の和:79564

約数の個数: 16

約数和(自身を含む): 28911307776

約数和(自身を除く): 9939932703

約数列:

[1, 3, 7, 21, 13723, 41169, 65831, 96061, 197493, 288183, 460817, 1382451, 903398813, 2710196439, 6323791691, 18971375073]

約数ペア:

[(1, 18971375073), (3, 6323791691), (7, 2710196439), (21, 903398813), (13723, 1382451), (41169, 460817), (65831, 288183), (96061, 197493)]