20531903

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{3671}}^1$

素因数の和:3742

約数の個数: 16

約数和(自身を含む): 25380864

約数和(自身を除く): 4848961

約数列:

[1, 7, 17, 47, 119, 329, 799, 3671, 5593, 25697, 62407, 172537, 436849, 1207759, 2933129, 20531903]

約数ペア:

[(1, 20531903), (7, 2933129), (17, 1207759), (47, 436849), (119, 172537), (329, 62407), (799, 25697), (3671, 5593)]