18954551

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{1237}}^1$

素因数の和:1454

約数の個数: 16

約数和(自身を含む): 23769600

約数和(自身を除く): 4815049

約数列:

[1, 7, 11, 77, 199, 1237, 1393, 2189, 8659, 13607, 15323, 95249, 246163, 1723141, 2707793, 18954551]

約数ペア:

[(1, 18954551), (7, 2707793), (11, 1723141), (77, 246163), (199, 95249), (1237, 15323), (1393, 13607), (2189, 8659)]