19893356

素因数分解:

$2^2\times 7^1\times {\mathrm{491}}^1\times {\mathrm{1447}}^1$

素因数の和:1949

約数の個数: 24

約数和(自身を含む): 39895296

約数和(自身を除く): 20001940

約数列:

[1, 2, 4, 7, 14, 28, 491, 982, 1447, 1964, 2894, 3437, 5788, 6874, 10129, 13748, 20258, 40516, 710477, 1420954, 2841908, 4973339, 9946678, 19893356]

約数ペア:

[(1, 19893356), (2, 9946678), (4, 4973339), (7, 2841908), (14, 1420954), (28, 710477), (491, 40516), (982, 20258), (1447, 13748), (1964, 10129), (2894, 6874), (3437, 5788)]