21065295

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{82609}}^1$

素因数の和:82634

約数の個数: 16

約数和(自身を含む): 35687520

約数和(自身を除く): 14622225

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 82609, 247827, 413045, 1239135, 1404353, 4213059, 7021765, 21065295]

約数ペア:

[(1, 21065295), (3, 7021765), (5, 4213059), (15, 1404353), (17, 1239135), (51, 413045), (85, 247827), (255, 82609)]