20197639

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{5581}}^1$

素因数の和:5646

約数の個数: 16

約数和(自身を含む): 25721856

約数和(自身を除く): 5524217

約数列:

[1, 7, 11, 47, 77, 329, 517, 3619, 5581, 39067, 61391, 262307, 429737, 1836149, 2885377, 20197639]

約数ペア:

[(1, 20197639), (7, 2885377), (11, 1836149), (47, 429737), (77, 262307), (329, 61391), (517, 39067), (3619, 5581)]