21317639

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{5527}}^1$

素因数の和:5582

約数の個数: 16

約数和(自身を含む): 26534400

約数和(自身を除く): 5216761

約数列:

[1, 7, 19, 29, 133, 203, 551, 3857, 5527, 38689, 105013, 160283, 735091, 1121981, 3045377, 21317639]

約数ペア:

[(1, 21317639), (7, 3045377), (19, 1121981), (29, 735091), (133, 160283), (203, 105013), (551, 38689), (3857, 5527)]