19808949

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{3797}}^1$

素因数の和:3884

約数の個数: 16

約数和(自身を含む): 27710208

約数和(自身を除く): 7901259

約数列:

[1, 3, 37, 47, 111, 141, 1739, 3797, 5217, 11391, 140489, 178459, 421467, 535377, 6602983, 19808949]

約数ペア:

[(1, 19808949), (3, 6602983), (37, 535377), (47, 421467), (111, 178459), (141, 140489), (1739, 11391), (3797, 5217)]