18786887

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{3359}}^1$

素因数の和:3430

約数の個数: 16

約数和(自身を含む): 23224320

約数和(自身を除く): 4437433

約数列:

[1, 7, 17, 47, 119, 329, 799, 3359, 5593, 23513, 57103, 157873, 399721, 1105111, 2683841, 18786887]

約数ペア:

[(1, 18786887), (7, 2683841), (17, 1105111), (47, 399721), (119, 157873), (329, 57103), (799, 23513), (3359, 5593)]