20388741

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{6287}}^1$

素因数の和:6360

約数の個数: 16

約数和(自身を含む): 28975104

約数和(自身を除く): 8586363

約数列:

[1, 3, 23, 47, 69, 141, 1081, 3243, 6287, 18861, 144601, 295489, 433803, 886467, 6796247, 20388741]

約数ペア:

[(1, 20388741), (3, 6796247), (23, 886467), (47, 433803), (69, 295489), (141, 144601), (1081, 18861), (3243, 6287)]