20004003

素因数分解:

$3^5\times {\mathrm{191}}^1\times {\mathrm{431}}^1$

素因数の和:637

約数の個数: 24

約数和(自身を含む): 30191616

約数和(自身を除く): 10187613

約数列:

[1, 3, 9, 27, 81, 191, 243, 431, 573, 1293, 1719, 3879, 5157, 11637, 15471, 34911, 46413, 82321, 104733, 246963, 740889, 2222667, 6668001, 20004003]

約数ペア:

[(1, 20004003), (3, 6668001), (9, 2222667), (27, 740889), (81, 246963), (191, 104733), (243, 82321), (431, 46413), (573, 34911), (1293, 15471), (1719, 11637), (3879, 5157)]