21759031

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{2203}}^1$

素因数の和:2310

約数の個数: 16

約数和(自身を含む): 26659584

約数和(自身を除く): 4900553

約数列:

[1, 7, 17, 83, 119, 581, 1411, 2203, 9877, 15421, 37451, 182849, 262157, 1279943, 3108433, 21759031]

約数ペア:

[(1, 21759031), (7, 3108433), (17, 1279943), (83, 262157), (119, 182849), (581, 37451), (1411, 15421), (2203, 9877)]