20780481

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{3929}}^1$

素因数の和:4016

約数の個数: 16

約数和(自身を含む): 29050560

約数和(自身を除く): 8270079

約数列:

[1, 3, 41, 43, 123, 129, 1763, 3929, 5289, 11787, 161089, 168947, 483267, 506841, 6926827, 20780481]

約数ペア:

[(1, 20780481), (3, 6926827), (41, 506841), (43, 483267), (123, 168947), (129, 161089), (1763, 11787), (3929, 5289)]