20888915

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{863}}^1$

素因数の和:1018

約数の個数: 16

約数和(自身を含む): 25878528

約数和(自身を除く): 4989613

約数列:

[1, 5, 47, 103, 235, 515, 863, 4315, 4841, 24205, 40561, 88889, 202805, 444445, 4177783, 20888915]

約数ペア:

[(1, 20888915), (5, 4177783), (47, 444445), (103, 202805), (235, 88889), (515, 40561), (863, 24205), (4315, 4841)]