20879252

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{6389}}^1$

素因数の和:6455

約数の個数: 24

約数和(自身を含む): 39362400

約数和(自身を除く): 18483148

約数列:

[1, 2, 4, 19, 38, 43, 76, 86, 172, 817, 1634, 3268, 6389, 12778, 25556, 121391, 242782, 274727, 485564, 549454, 1098908, 5219813, 10439626, 20879252]

約数ペア:

[(1, 20879252), (2, 10439626), (4, 5219813), (19, 1098908), (38, 549454), (43, 485564), (76, 274727), (86, 242782), (172, 121391), (817, 25556), (1634, 12778), (3268, 6389)]