20912295

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{82009}}^1$

素因数の和:82034

約数の個数: 16

約数和(自身を含む): 35428320

約数和(自身を除く): 14516025

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 82009, 246027, 410045, 1230135, 1394153, 4182459, 6970765, 20912295]

約数ペア:

[(1, 20912295), (3, 6970765), (5, 4182459), (15, 1394153), (17, 1230135), (51, 410045), (85, 246027), (255, 82009)]