21149445

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{82939}}^1$

素因数の和:82964

約数の個数: 16

約数和(自身を含む): 35830080

約数和(自身を除く): 14680635

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 82939, 248817, 414695, 1244085, 1409963, 4229889, 7049815, 21149445]

約数ペア:

[(1, 21149445), (3, 7049815), (5, 4229889), (15, 1409963), (17, 1244085), (51, 414695), (85, 248817), (255, 82939)]