20564747

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{2833}}^1$

素因数の和:2918

約数の個数: 16

約数和(自身を含む): 25301952

約数和(自身を除く): 4737205

約数列:

[1, 7, 17, 61, 119, 427, 1037, 2833, 7259, 19831, 48161, 172813, 337127, 1209691, 2937821, 20564747]

約数ペア:

[(1, 20564747), (7, 2937821), (17, 1209691), (61, 337127), (119, 172813), (427, 48161), (1037, 19831), (2833, 7259)]