19984027

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{2753}}^1$

素因数の和:2838

約数の個数: 16

約数和(自身を含む): 24587712

約数和(自身を除く): 4603685

約数列:

[1, 7, 17, 61, 119, 427, 1037, 2753, 7259, 19271, 46801, 167933, 327607, 1175531, 2854861, 19984027]

約数ペア:

[(1, 19984027), (7, 2854861), (17, 1175531), (61, 327607), (119, 167933), (427, 46801), (1037, 19271), (2753, 7259)]