1787669919

素因数分解:

$3^4\times 7^1\times {\mathrm{3152857}}^1$

素因数の和:3152876

約数の個数: 20

約数和(自身を含む): 3051966544

約数和(自身を除く): 1264296625

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 3152857, 9458571, 22069999, 28375713, 66209997, 85127139, 198629991, 255381417, 595889973, 1787669919]

約数ペア:

[(1, 1787669919), (3, 595889973), (7, 255381417), (9, 198629991), (21, 85127139), (27, 66209997), (63, 28375713), (81, 22069999), (189, 9458571), (567, 3152857)]